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| 64 | <h1>emix.h</h1><a href="emix_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 |
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| 65 | <a name="l00013"></a>00013 <span class="preprocessor">#ifndef EMIX_H</span> |
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| 66 | <a name="l00014"></a>00014 <span class="preprocessor"></span><span class="preprocessor">#define EMIX_H</span> |
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| 67 | <a name="l00015"></a>00015 <span class="preprocessor"></span> |
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| 68 | <a name="l00016"></a>00016 <span class="preprocessor">#define LOG2 0.69314718055995</span> |
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| 69 | <a name="l00017"></a>00017 <span class="preprocessor"></span> |
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| 70 | <a name="l00018"></a>00018 <span class="preprocessor">#include "../shared_ptr.h"</span> |
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| 71 | <a name="l00019"></a>00019 <span class="preprocessor">#include "<a class="code" href="exp__family_8h.html" title="Probability distributions for Exponential Family models.">exp_family.h</a>"</span> |
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| 72 | <a name="l00020"></a>00020 |
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| 73 | <a name="l00021"></a>00021 <span class="keyword">namespace </span>bdm { |
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| 74 | <a name="l00022"></a>00022 |
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| 75 | <a name="l00023"></a>00023 <span class="comment">//this comes first because it is used inside emix!</span> |
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| 76 | <a name="l00024"></a>00024 |
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| 77 | <a name="l00037"></a><a class="code" href="classbdm_1_1mratio.html">00037</a> <span class="keyword">class </span><a class="code" href="classbdm_1_1mratio.html" title="Class representing ratio of two densities which arise e.g. by applying the Bayes...">mratio</a>: <span class="keyword">public</span> <a class="code" href="classbdm_1_1mpdf.html" title="Conditional probability density, e.g. modeling , where is random variable, rv, and...">mpdf</a> { |
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| 78 | <a name="l00038"></a>00038 <span class="keyword">protected</span>: |
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| 79 | <a name="l00040"></a><a class="code" href="classbdm_1_1mratio.html#f31caba90a2aa10fbf7631832404fe54">00040</a> <span class="keyword">const</span> <a class="code" href="classbdm_1_1epdf.html" title="Probability density function with numerical statistics, e.g. posterior density.">epdf</a>* <a class="code" href="classbdm_1_1mratio.html#f31caba90a2aa10fbf7631832404fe54" title="Nominator in the form of mpdf.">nom</a>; |
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| 80 | <a name="l00041"></a>00041 |
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| 81 | <a name="l00043"></a><a class="code" href="classbdm_1_1mratio.html#873598797f36eddab44e342e14563fcb">00043</a> <a class="code" href="classbdm_1_1shared__ptr.html">shared_ptr<epdf></a> <a class="code" href="classbdm_1_1mratio.html#873598797f36eddab44e342e14563fcb" title="Denominator in the form of epdf.">den</a>; |
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| 82 | <a name="l00044"></a>00044 |
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| 83 | <a name="l00046"></a><a class="code" href="classbdm_1_1mratio.html#51bfe6675e724f7fbeaaeacce5a9f9b8">00046</a> <span class="keywordtype">bool</span> <a class="code" href="classbdm_1_1mratio.html#51bfe6675e724f7fbeaaeacce5a9f9b8" title="flag for destructor">destroynom</a>; |
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| 84 | <a name="l00048"></a><a class="code" href="classbdm_1_1mratio.html#cda5bd23ba60146d69e1f804ff7710c7">00048</a> <a class="code" href="classbdm_1_1datalink__m2e.html" title="Data link with a condition.">datalink_m2e</a> <a class="code" href="classbdm_1_1mratio.html#cda5bd23ba60146d69e1f804ff7710c7" title="datalink between conditional and nom">dl</a>; |
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| 85 | <a name="l00050"></a><a class="code" href="classbdm_1_1mratio.html#7a676422bc6cc426ffa6fddf52672409">00050</a> <a class="code" href="classbdm_1_1epdf.html" title="Probability density function with numerical statistics, e.g. posterior density.">epdf</a> <a class="code" href="classbdm_1_1mratio.html#7a676422bc6cc426ffa6fddf52672409" title="dummy epdf that stores only rv and dim">iepdf</a>; |
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| 86 | <a name="l00051"></a>00051 <span class="keyword">public</span>: |
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| 87 | <a name="l00054"></a><a class="code" href="classbdm_1_1mratio.html#0ff56d13f9515d7e5f23b7a4cc5529b4">00054</a> <a class="code" href="classbdm_1_1mratio.html#0ff56d13f9515d7e5f23b7a4cc5529b4">mratio</a> ( <span class="keyword">const</span> <a class="code" href="classbdm_1_1epdf.html" title="Probability density function with numerical statistics, e.g. posterior density.">epdf</a>* nom0, <span class="keyword">const</span> <a class="code" href="classbdm_1_1RV.html" title="Class representing variables, most often random variables.">RV</a> &rv, <span class="keywordtype">bool</span> copy = <span class="keyword">false</span> ) : <a class="code" href="classbdm_1_1mpdf.html" title="Conditional probability density, e.g. modeling , where is random variable, rv, and...">mpdf</a> ( ), <a class="code" href="classbdm_1_1mratio.html#cda5bd23ba60146d69e1f804ff7710c7" title="datalink between conditional and nom">dl</a> ( ),<a class="code" href="classbdm_1_1mratio.html#7a676422bc6cc426ffa6fddf52672409" title="dummy epdf that stores only rv and dim">iepdf</a>() { |
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| 88 | <a name="l00055"></a>00055 <span class="comment">// adjust rv and rvc</span> |
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| 89 | <a name="l00056"></a>00056 <a class="code" href="classbdm_1_1mpdf.html#5a5f08950daa08b85b01ddf4e1c36288" title="random variable in condition">rvc</a> = nom0-><a class="code" href="classbdm_1_1epdf.html#a4ab378d5e004c3ff3e2d4e64f7bba21" title="Return name (fails when isnamed is false).">_rv</a>().<a class="code" href="classbdm_1_1RV.html#aec44dabdf0a6d90fbae95e1356eda39" title="Subtract another variable from the current one.">subt</a> ( rv ); |
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| 90 | <a name="l00057"></a>00057 <a class="code" href="classbdm_1_1mpdf.html#7c1900976ff13dbc09c9729b3bbff9e6" title="dimension of the condition">dimc</a> = <a class="code" href="classbdm_1_1mpdf.html#5a5f08950daa08b85b01ddf4e1c36288" title="random variable in condition">rvc</a>.<a class="code" href="classbdm_1_1RV.html#de30156104f61d86c94f758861418089">_dsize</a>(); |
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| 91 | <a name="l00058"></a>00058 <a class="code" href="classbdm_1_1mpdf.html#147afacb393324bb3f9a7a89e33f835e" title="set internal pointer ep to point to given iepdf ">set_ep</a> ( <a class="code" href="classbdm_1_1mratio.html#7a676422bc6cc426ffa6fddf52672409" title="dummy epdf that stores only rv and dim">iepdf</a> ); |
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| 92 | <a name="l00059"></a>00059 <a class="code" href="classbdm_1_1mratio.html#7a676422bc6cc426ffa6fddf52672409" title="dummy epdf that stores only rv and dim">iepdf</a>.<a class="code" href="classbdm_1_1epdf.html#840de94aa33cf4f2ebd2427f45a165d8">set_parameters</a> ( rv.<a class="code" href="classbdm_1_1RV.html#de30156104f61d86c94f758861418089">_dsize</a>() ); |
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| 93 | <a name="l00060"></a>00060 <a class="code" href="classbdm_1_1mratio.html#7a676422bc6cc426ffa6fddf52672409" title="dummy epdf that stores only rv and dim">iepdf</a>.<a class="code" href="classbdm_1_1epdf.html#f423e28448dbb69ef4905295ec8de8ff" title="Name its rv.">set_rv</a> ( rv ); |
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| 94 | <a name="l00061"></a>00061 |
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| 95 | <a name="l00062"></a>00062 <span class="comment">//prepare data structures</span> |
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| 96 | <a name="l00063"></a>00063 <span class="keywordflow">if</span> ( copy ) { |
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| 97 | <a name="l00064"></a>00064 it_error ( <span class="stringliteral">"todo"</span> ); |
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| 98 | <a name="l00065"></a>00065 <a class="code" href="classbdm_1_1mratio.html#51bfe6675e724f7fbeaaeacce5a9f9b8" title="flag for destructor">destroynom</a> = <span class="keyword">true</span>; |
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| 99 | <a name="l00066"></a>00066 } <span class="keywordflow">else</span> { |
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| 100 | <a name="l00067"></a>00067 <a class="code" href="classbdm_1_1mratio.html#f31caba90a2aa10fbf7631832404fe54" title="Nominator in the form of mpdf.">nom</a> = nom0; |
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| 101 | <a name="l00068"></a>00068 <a class="code" href="classbdm_1_1mratio.html#51bfe6675e724f7fbeaaeacce5a9f9b8" title="flag for destructor">destroynom</a> = <span class="keyword">false</span>; |
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| 102 | <a name="l00069"></a>00069 } |
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| 103 | <a name="l00070"></a>00070 it_assert_debug ( <a class="code" href="classbdm_1_1mpdf.html#5a5f08950daa08b85b01ddf4e1c36288" title="random variable in condition">rvc</a>.<a class="code" href="classbdm_1_1RV.html#e9ec8c3e756651ff352ab5e3d3acda4b">length</a>() > 0, <span class="stringliteral">"Makes no sense to use this object!"</span> ); |
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| 104 | <a name="l00071"></a>00071 |
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| 105 | <a name="l00072"></a>00072 <span class="comment">// build denominator</span> |
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| 106 | <a name="l00073"></a>00073 <a class="code" href="classbdm_1_1mratio.html#873598797f36eddab44e342e14563fcb" title="Denominator in the form of epdf.">den</a> = <a class="code" href="classbdm_1_1mratio.html#f31caba90a2aa10fbf7631832404fe54" title="Nominator in the form of mpdf.">nom</a>-><a class="code" href="classbdm_1_1epdf.html#a84b05f5293cab2aeb4e07faffa60906" title="Return marginal density on the given RV, the remainig rvs are intergrated out.">marginal</a> ( <a class="code" href="classbdm_1_1mpdf.html#5a5f08950daa08b85b01ddf4e1c36288" title="random variable in condition">rvc</a> ); |
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| 107 | <a name="l00074"></a>00074 <a class="code" href="classbdm_1_1mratio.html#cda5bd23ba60146d69e1f804ff7710c7" title="datalink between conditional and nom">dl</a>.<a class="code" href="classbdm_1_1datalink__m2e.html#add918bf877c48714cff51ee4ad989b0" title="Set connection between vectors.">set_connection</a> ( rv, <a class="code" href="classbdm_1_1mpdf.html#5a5f08950daa08b85b01ddf4e1c36288" title="random variable in condition">rvc</a>, nom0-><a class="code" href="classbdm_1_1epdf.html#a4ab378d5e004c3ff3e2d4e64f7bba21" title="Return name (fails when isnamed is false).">_rv</a>() ); |
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| 108 | <a name="l00075"></a>00075 }; |
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| 109 | <a name="l00076"></a><a class="code" href="classbdm_1_1mratio.html#3a2cbce8c61ca9f592d9c2220f7c1204">00076</a> <span class="keywordtype">double</span> <a class="code" href="classbdm_1_1mratio.html#3a2cbce8c61ca9f592d9c2220f7c1204" title="Shortcut for conditioning and evaluation of the internal epdf. In some cases, this...">evallogcond</a> ( <span class="keyword">const</span> vec &val, <span class="keyword">const</span> vec &cond ) { |
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| 110 | <a name="l00077"></a>00077 <span class="keywordtype">double</span> tmp; |
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| 111 | <a name="l00078"></a>00078 vec nom_val ( dimension() + <a class="code" href="classbdm_1_1mpdf.html#7c1900976ff13dbc09c9729b3bbff9e6" title="dimension of the condition">dimc</a> ); |
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| 112 | <a name="l00079"></a>00079 <a class="code" href="classbdm_1_1mratio.html#cda5bd23ba60146d69e1f804ff7710c7" title="datalink between conditional and nom">dl</a>.<a class="code" href="classbdm_1_1datalink__m2e.html#b29bc3c7bf2a1d87e77ccaa793d097d5" title="Copy corresponding values to Up.condition.">pushup_cond</a> ( nom_val, val, cond ); |
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| 113 | <a name="l00080"></a>00080 tmp = exp ( <a class="code" href="classbdm_1_1mratio.html#f31caba90a2aa10fbf7631832404fe54" title="Nominator in the form of mpdf.">nom</a>-><a class="code" href="classbdm_1_1epdf.html#deab266d63c236c277538867d5c3f249">evallog</a> ( nom_val ) - <a class="code" href="classbdm_1_1mratio.html#873598797f36eddab44e342e14563fcb" title="Denominator in the form of epdf.">den</a>->evallog ( cond ) ); |
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| 114 | <a name="l00081"></a>00081 <span class="keywordflow">return</span> tmp; |
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| 115 | <a name="l00082"></a>00082 } |
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| 116 | <a name="l00084"></a><a class="code" href="classbdm_1_1mratio.html#c8b39fea586d4258bb3c881406edaf15">00084</a> <span class="keywordtype">void</span> <a class="code" href="classbdm_1_1mratio.html#c8b39fea586d4258bb3c881406edaf15" title="Object takes ownership of nom and will destroy it.">ownnom</a>() { |
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| 117 | <a name="l00085"></a>00085 <a class="code" href="classbdm_1_1mratio.html#51bfe6675e724f7fbeaaeacce5a9f9b8" title="flag for destructor">destroynom</a> = <span class="keyword">true</span>; |
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| 118 | <a name="l00086"></a>00086 } |
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| 119 | <a name="l00088"></a><a class="code" href="classbdm_1_1mratio.html#c0cc0b25dbdc54751466616655454c5c">00088</a> <a class="code" href="classbdm_1_1mratio.html#c0cc0b25dbdc54751466616655454c5c" title="Default destructor.">~mratio</a>() { |
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| 120 | <a name="l00089"></a>00089 <span class="keywordflow">if</span> ( <a class="code" href="classbdm_1_1mratio.html#51bfe6675e724f7fbeaaeacce5a9f9b8" title="flag for destructor">destroynom</a> ) { |
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| 121 | <a name="l00090"></a>00090 <span class="keyword">delete</span> <a class="code" href="classbdm_1_1mratio.html#f31caba90a2aa10fbf7631832404fe54" title="Nominator in the form of mpdf.">nom</a>; |
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| 122 | <a name="l00091"></a>00091 } |
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| 123 | <a name="l00092"></a>00092 } |
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| 124 | <a name="l00093"></a>00093 }; |
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| 125 | <a name="l00094"></a>00094 |
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| 126 | <a name="l00105"></a><a class="code" href="classbdm_1_1emix.html">00105</a> <span class="keyword">class </span><a class="code" href="classbdm_1_1emix.html" title="Mixture of epdfs.">emix</a> : <span class="keyword">public</span> <a class="code" href="classbdm_1_1epdf.html" title="Probability density function with numerical statistics, e.g. posterior density.">epdf</a> { |
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| 127 | <a name="l00106"></a>00106 <span class="keyword">protected</span>: |
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| 128 | <a name="l00108"></a><a class="code" href="classbdm_1_1emix.html#bb7270345c76da627cd77ddf020bcf46">00108</a> vec <a class="code" href="classbdm_1_1emix.html#bb7270345c76da627cd77ddf020bcf46" title="weights of the components">w</a>; |
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| 129 | <a name="l00110"></a><a class="code" href="classbdm_1_1emix.html#866e75dacba151942ead95104e57a897">00110</a> Array<shared_ptr<epdf> > <a class="code" href="classbdm_1_1emix.html#866e75dacba151942ead95104e57a897" title="Component (epdfs).">Coms</a>; |
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| 130 | <a name="l00111"></a>00111 |
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| 131 | <a name="l00112"></a>00112 <span class="keyword">public</span>: |
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| 132 | <a name="l00114"></a><a class="code" href="classbdm_1_1emix.html#4838f3a376ee0bd3c658bfb8f4ea4a3d">00114</a> <a class="code" href="classbdm_1_1emix.html#4838f3a376ee0bd3c658bfb8f4ea4a3d" title="Default constructor.">emix</a> ( ) : <a class="code" href="classbdm_1_1epdf.html" title="Probability density function with numerical statistics, e.g. posterior density.">epdf</a> ( ) {}; |
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| 133 | <a name="l00117"></a>00117 <span class="keywordtype">void</span> <a class="code" href="classbdm_1_1emix.html#10b4e0c45dd8f7d78f73e325382c6922">set_parameters</a> ( <span class="keyword">const</span> vec &<a class="code" href="classbdm_1_1emix.html#bb7270345c76da627cd77ddf020bcf46" title="weights of the components">w</a>, <span class="keyword">const</span> Array<<a class="code" href="classbdm_1_1shared__ptr.html">shared_ptr<epdf></a> > &<a class="code" href="classbdm_1_1emix.html#866e75dacba151942ead95104e57a897" title="Component (epdfs).">Coms</a> ); |
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| 134 | <a name="l00118"></a>00118 |
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| 135 | <a name="l00119"></a>00119 vec <a class="code" href="classbdm_1_1emix.html#e8839dbbb0d1276a8dbe957a67cfe0dc" title="Returns a sample, from density .">sample</a>() <span class="keyword">const</span>; |
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| 136 | <a name="l00120"></a><a class="code" href="classbdm_1_1emix.html#a3a5390bc56e81ef3b0debc0f185fa8a">00120</a> vec <a class="code" href="classbdm_1_1emix.html#a3a5390bc56e81ef3b0debc0f185fa8a" title="return expected value">mean</a>()<span class="keyword"> const </span>{ |
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| 137 | <a name="l00121"></a>00121 <span class="keywordtype">int</span> i; |
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| 138 | <a name="l00122"></a>00122 vec mu = zeros ( <a class="code" href="classbdm_1_1epdf.html#16adac20ec7fe07e1ea0b27d917788ce" title="dimension of the random variable">dim</a> ); |
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| 139 | <a name="l00123"></a>00123 <span class="keywordflow">for</span> ( i = 0; i < <a class="code" href="classbdm_1_1emix.html#bb7270345c76da627cd77ddf020bcf46" title="weights of the components">w</a>.length(); i++ ) { |
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| 140 | <a name="l00124"></a>00124 mu += <a class="code" href="classbdm_1_1emix.html#bb7270345c76da627cd77ddf020bcf46" title="weights of the components">w</a> ( i ) * <a class="code" href="classbdm_1_1emix.html#866e75dacba151942ead95104e57a897" title="Component (epdfs).">Coms</a> ( i )->mean(); |
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| 141 | <a name="l00125"></a>00125 } |
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| 142 | <a name="l00126"></a>00126 <span class="keywordflow">return</span> mu; |
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| 143 | <a name="l00127"></a>00127 } |
|---|
| 144 | <a name="l00128"></a><a class="code" href="classbdm_1_1emix.html#e9a627023cdf90c9ffd8eef726595c86">00128</a> vec <a class="code" href="classbdm_1_1emix.html#e9a627023cdf90c9ffd8eef726595c86" title="return expected variance (not covariance!)">variance</a>()<span class="keyword"> const </span>{ |
|---|
| 145 | <a name="l00129"></a>00129 <span class="comment">//non-central moment</span> |
|---|
| 146 | <a name="l00130"></a>00130 vec mom2 = zeros ( <a class="code" href="classbdm_1_1epdf.html#16adac20ec7fe07e1ea0b27d917788ce" title="dimension of the random variable">dim</a> ); |
|---|
| 147 | <a name="l00131"></a>00131 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 0; i < <a class="code" href="classbdm_1_1emix.html#bb7270345c76da627cd77ddf020bcf46" title="weights of the components">w</a>.length(); i++ ) { |
|---|
| 148 | <a name="l00132"></a>00132 mom2 += <a class="code" href="classbdm_1_1emix.html#bb7270345c76da627cd77ddf020bcf46" title="weights of the components">w</a> ( i ) * ( <a class="code" href="classbdm_1_1emix.html#866e75dacba151942ead95104e57a897" title="Component (epdfs).">Coms</a> ( i )->variance() + pow ( <a class="code" href="classbdm_1_1emix.html#866e75dacba151942ead95104e57a897" title="Component (epdfs).">Coms</a> ( i )-><a class="code" href="classbdm_1_1emix.html#a3a5390bc56e81ef3b0debc0f185fa8a" title="return expected value">mean</a>(), 2 ) ); |
|---|
| 149 | <a name="l00133"></a>00133 } |
|---|
| 150 | <a name="l00134"></a>00134 <span class="comment">//central moment</span> |
|---|
| 151 | <a name="l00135"></a>00135 <span class="keywordflow">return</span> mom2 - pow ( <a class="code" href="classbdm_1_1emix.html#a3a5390bc56e81ef3b0debc0f185fa8a" title="return expected value">mean</a>(), 2 ); |
|---|
| 152 | <a name="l00136"></a>00136 } |
|---|
| 153 | <a name="l00137"></a><a class="code" href="classbdm_1_1emix.html#0f3db99f730bde6b7953931594537e8e">00137</a> <span class="keywordtype">double</span> <a class="code" href="classbdm_1_1emix.html#0f3db99f730bde6b7953931594537e8e">evallog</a> ( <span class="keyword">const</span> vec &val )<span class="keyword"> const </span>{ |
|---|
| 154 | <a name="l00138"></a>00138 <span class="keywordtype">int</span> i; |
|---|
| 155 | <a name="l00139"></a>00139 <span class="keywordtype">double</span> sum = 0.0; |
|---|
| 156 | <a name="l00140"></a>00140 <span class="keywordflow">for</span> ( i = 0; i < <a class="code" href="classbdm_1_1emix.html#bb7270345c76da627cd77ddf020bcf46" title="weights of the components">w</a>.length(); i++ ) { |
|---|
| 157 | <a name="l00141"></a>00141 sum += <a class="code" href="classbdm_1_1emix.html#bb7270345c76da627cd77ddf020bcf46" title="weights of the components">w</a> ( i ) * exp ( <a class="code" href="classbdm_1_1emix.html#866e75dacba151942ead95104e57a897" title="Component (epdfs).">Coms</a> ( i )-><a class="code" href="classbdm_1_1emix.html#0f3db99f730bde6b7953931594537e8e">evallog</a> ( val ) ); |
|---|
| 158 | <a name="l00142"></a>00142 } |
|---|
| 159 | <a name="l00143"></a>00143 <span class="keywordflow">if</span> ( sum == 0.0 ) { |
|---|
| 160 | <a name="l00144"></a>00144 sum = std::numeric_limits<double>::epsilon(); |
|---|
| 161 | <a name="l00145"></a>00145 } |
|---|
| 162 | <a name="l00146"></a>00146 <span class="keywordtype">double</span> tmp = log ( sum ); |
|---|
| 163 | <a name="l00147"></a>00147 it_assert_debug ( std::isfinite ( tmp ), <span class="stringliteral">"Infinite"</span> ); |
|---|
| 164 | <a name="l00148"></a>00148 <span class="keywordflow">return</span> tmp; |
|---|
| 165 | <a name="l00149"></a>00149 }; |
|---|
| 166 | <a name="l00150"></a><a class="code" href="classbdm_1_1emix.html#23af1986e2afcbc8c7e1c30f610e703b">00150</a> vec <a class="code" href="classbdm_1_1emix.html#23af1986e2afcbc8c7e1c30f610e703b" title="Compute log-probability of multiple values argument val.">evallog_m</a> ( <span class="keyword">const</span> mat &Val )<span class="keyword"> const </span>{ |
|---|
| 167 | <a name="l00151"></a>00151 vec x = zeros ( Val.cols() ); |
|---|
| 168 | <a name="l00152"></a>00152 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 0; i < <a class="code" href="classbdm_1_1emix.html#bb7270345c76da627cd77ddf020bcf46" title="weights of the components">w</a>.length(); i++ ) { |
|---|
| 169 | <a name="l00153"></a>00153 x += <a class="code" href="classbdm_1_1emix.html#bb7270345c76da627cd77ddf020bcf46" title="weights of the components">w</a> ( i ) * exp ( <a class="code" href="classbdm_1_1emix.html#866e75dacba151942ead95104e57a897" title="Component (epdfs).">Coms</a> ( i )-><a class="code" href="classbdm_1_1emix.html#23af1986e2afcbc8c7e1c30f610e703b" title="Compute log-probability of multiple values argument val.">evallog_m</a> ( Val ) ); |
|---|
| 170 | <a name="l00154"></a>00154 } |
|---|
| 171 | <a name="l00155"></a>00155 <span class="keywordflow">return</span> log ( x ); |
|---|
| 172 | <a name="l00156"></a>00156 }; |
|---|
| 173 | <a name="l00158"></a><a class="code" href="classbdm_1_1emix.html#e64c1d5a73f541e469792e23d4677af2">00158</a> mat <a class="code" href="classbdm_1_1emix.html#e64c1d5a73f541e469792e23d4677af2" title="Auxiliary function that returns pdflog for each component.">evallog_M</a> ( <span class="keyword">const</span> mat &Val )<span class="keyword"> const </span>{ |
|---|
| 174 | <a name="l00159"></a>00159 mat X ( <a class="code" href="classbdm_1_1emix.html#bb7270345c76da627cd77ddf020bcf46" title="weights of the components">w</a>.length(), Val.cols() ); |
|---|
| 175 | <a name="l00160"></a>00160 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 0; i < <a class="code" href="classbdm_1_1emix.html#bb7270345c76da627cd77ddf020bcf46" title="weights of the components">w</a>.length(); i++ ) { |
|---|
| 176 | <a name="l00161"></a>00161 X.set_row ( i, <a class="code" href="classbdm_1_1emix.html#bb7270345c76da627cd77ddf020bcf46" title="weights of the components">w</a> ( i ) *exp ( <a class="code" href="classbdm_1_1emix.html#866e75dacba151942ead95104e57a897" title="Component (epdfs).">Coms</a> ( i )-><a class="code" href="classbdm_1_1emix.html#23af1986e2afcbc8c7e1c30f610e703b" title="Compute log-probability of multiple values argument val.">evallog_m</a> ( Val ) ) ); |
|---|
| 177 | <a name="l00162"></a>00162 } |
|---|
| 178 | <a name="l00163"></a>00163 <span class="keywordflow">return</span> X; |
|---|
| 179 | <a name="l00164"></a>00164 }; |
|---|
| 180 | <a name="l00165"></a>00165 |
|---|
| 181 | <a name="l00166"></a>00166 <a class="code" href="classbdm_1_1shared__ptr.html">shared_ptr<epdf></a> <a class="code" href="classbdm_1_1emix.html#4edf5ceb3179a03f01b870c67eb53bb6" title="Return marginal density on the given RV, the remainig rvs are intergrated out.">marginal</a> ( <span class="keyword">const</span> <a class="code" href="classbdm_1_1RV.html" title="Class representing variables, most often random variables.">RV</a> &<a class="code" href="classbdm_1_1epdf.html#62c5b8ff71d9ebe6cd58d3c342eb1dc8" title="Description of the random variable.">rv</a> ) <span class="keyword">const</span>; |
|---|
| 182 | <a name="l00168"></a>00168 <span class="keywordtype">void</span> <a class="code" href="classbdm_1_1emix.html#4edf5ceb3179a03f01b870c67eb53bb6" title="Return marginal density on the given RV, the remainig rvs are intergrated out.">marginal</a> ( <span class="keyword">const</span> <a class="code" href="classbdm_1_1RV.html" title="Class representing variables, most often random variables.">RV</a> &<a class="code" href="classbdm_1_1epdf.html#62c5b8ff71d9ebe6cd58d3c342eb1dc8" title="Description of the random variable.">rv</a>, <a class="code" href="classbdm_1_1emix.html" title="Mixture of epdfs.">emix</a> &target ) <span class="keyword">const</span>; |
|---|
| 183 | <a name="l00169"></a>00169 <a class="code" href="classbdm_1_1shared__ptr.html">shared_ptr<mpdf></a> <a class="code" href="classbdm_1_1emix.html#4176e4dc11980db4200b9fab54402a09" title="Return conditional density on the given RV, the remaining rvs will be in conditioning...">condition</a> ( <span class="keyword">const</span> <a class="code" href="classbdm_1_1RV.html" title="Class representing variables, most often random variables.">RV</a> &<a class="code" href="classbdm_1_1epdf.html#62c5b8ff71d9ebe6cd58d3c342eb1dc8" title="Description of the random variable.">rv</a> ) <span class="keyword">const</span>; |
|---|
| 184 | <a name="l00170"></a>00170 |
|---|
| 185 | <a name="l00171"></a>00171 <span class="comment">//Access methods</span> |
|---|
| 186 | <a name="l00173"></a><a class="code" href="classbdm_1_1emix.html#d9b584cb5b2471a4250fb127757f28be">00173</a> <span class="comment"></span> vec& <a class="code" href="classbdm_1_1emix.html#d9b584cb5b2471a4250fb127757f28be" title="returns a pointer to the internal mean value. Use with Care!">_w</a>() { |
|---|
| 187 | <a name="l00174"></a>00174 <span class="keywordflow">return</span> <a class="code" href="classbdm_1_1emix.html#bb7270345c76da627cd77ddf020bcf46" title="weights of the components">w</a>; |
|---|
| 188 | <a name="l00175"></a>00175 } |
|---|
| 189 | <a name="l00176"></a>00176 |
|---|
| 190 | <a name="l00178"></a><a class="code" href="classbdm_1_1emix.html#579437ba18bf9975b3084e10bfe1b727">00178</a> <a class="code" href="classbdm_1_1shared__ptr.html">shared_ptr<epdf></a> <a class="code" href="classbdm_1_1emix.html#579437ba18bf9975b3084e10bfe1b727" title="access function">_Coms</a> ( <span class="keywordtype">int</span> i ) { |
|---|
| 191 | <a name="l00179"></a>00179 <span class="keywordflow">return</span> <a class="code" href="classbdm_1_1emix.html#866e75dacba151942ead95104e57a897" title="Component (epdfs).">Coms</a> ( i ); |
|---|
| 192 | <a name="l00180"></a>00180 } |
|---|
| 193 | <a name="l00181"></a>00181 |
|---|
| 194 | <a name="l00182"></a><a class="code" href="classbdm_1_1emix.html#04a8632cfa9299ae937228eb732fd61e">00182</a> <span class="keywordtype">void</span> <a class="code" href="classbdm_1_1emix.html#04a8632cfa9299ae937228eb732fd61e" title="Name its rv.">set_rv</a> ( <span class="keyword">const</span> <a class="code" href="classbdm_1_1RV.html" title="Class representing variables, most often random variables.">RV</a> &<a class="code" href="classbdm_1_1epdf.html#62c5b8ff71d9ebe6cd58d3c342eb1dc8" title="Description of the random variable.">rv</a> ) { |
|---|
| 195 | <a name="l00183"></a>00183 <a class="code" href="classbdm_1_1emix.html#04a8632cfa9299ae937228eb732fd61e" title="Name its rv.">epdf::set_rv</a> ( rv ); |
|---|
| 196 | <a name="l00184"></a>00184 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 0; i < <a class="code" href="classbdm_1_1emix.html#866e75dacba151942ead95104e57a897" title="Component (epdfs).">Coms</a>.length(); i++ ) { |
|---|
| 197 | <a name="l00185"></a>00185 <a class="code" href="classbdm_1_1emix.html#866e75dacba151942ead95104e57a897" title="Component (epdfs).">Coms</a> ( i )->set_rv ( rv ); |
|---|
| 198 | <a name="l00186"></a>00186 } |
|---|
| 199 | <a name="l00187"></a>00187 } |
|---|
| 200 | <a name="l00188"></a>00188 }; |
|---|
| 201 | <a name="l00189"></a>00189 SHAREDPTR( emix ); |
|---|
| 202 | <a name="l00190"></a>00190 |
|---|
| 203 | <a name="l00195"></a><a class="code" href="classbdm_1_1egiwmix.html">00195</a> <span class="keyword">class </span><a class="code" href="classbdm_1_1egiwmix.html" title="Mixture of egiws.">egiwmix</a> : <span class="keyword">public</span> <a class="code" href="classbdm_1_1egiw.html" title="Gauss-inverse-Wishart density stored in LD form.">egiw</a> { |
|---|
| 204 | <a name="l00196"></a>00196 <span class="keyword">protected</span>: |
|---|
| 205 | <a name="l00198"></a><a class="code" href="classbdm_1_1egiwmix.html#2deb6d7cd689949b92450227de98afa4">00198</a> vec <a class="code" href="classbdm_1_1egiwmix.html#2deb6d7cd689949b92450227de98afa4" title="weights of the components">w</a>; |
|---|
| 206 | <a name="l00200"></a><a class="code" href="classbdm_1_1egiwmix.html#8d0a3acd6ced68349b8f9950f4658280">00200</a> Array<egiw*> <a class="code" href="classbdm_1_1egiwmix.html#8d0a3acd6ced68349b8f9950f4658280" title="Component (epdfs).">Coms</a>; |
|---|
| 207 | <a name="l00202"></a><a class="code" href="classbdm_1_1egiwmix.html#2a363169e5aa6c7cad1f4d7647fe9eec">00202</a> <span class="keywordtype">bool</span> <a class="code" href="classbdm_1_1egiwmix.html#2a363169e5aa6c7cad1f4d7647fe9eec" title="Flag if owning Coms.">destroyComs</a>; |
|---|
| 208 | <a name="l00203"></a>00203 <span class="keyword">public</span>: |
|---|
| 209 | <a name="l00205"></a><a class="code" href="classbdm_1_1egiwmix.html#41f4cf7baf554e0a70bf495457179dbb">00205</a> <a class="code" href="classbdm_1_1egiwmix.html#41f4cf7baf554e0a70bf495457179dbb" title="Default constructor.">egiwmix</a> ( ) : <a class="code" href="classbdm_1_1egiw.html" title="Gauss-inverse-Wishart density stored in LD form.">egiw</a> ( ) {}; |
|---|
| 210 | <a name="l00206"></a>00206 |
|---|
| 211 | <a name="l00209"></a>00209 <span class="keywordtype">void</span> <a class="code" href="classbdm_1_1egiwmix.html#c4627222e22df6e14f8f1496e13c4975">set_parameters</a> ( <span class="keyword">const</span> vec &<a class="code" href="classbdm_1_1egiwmix.html#2deb6d7cd689949b92450227de98afa4" title="weights of the components">w</a>, <span class="keyword">const</span> Array<egiw*> &<a class="code" href="classbdm_1_1egiwmix.html#8d0a3acd6ced68349b8f9950f4658280" title="Component (epdfs).">Coms</a>, <span class="keywordtype">bool</span> copy = <span class="keyword">false</span> ); |
|---|
| 212 | <a name="l00210"></a>00210 |
|---|
| 213 | <a name="l00212"></a>00212 vec <a class="code" href="classbdm_1_1egiwmix.html#74e7c77bd89a454a7fd984945c58df1c" title="return expected value">mean</a>() <span class="keyword">const</span>; |
|---|
| 214 | <a name="l00213"></a>00213 |
|---|
| 215 | <a name="l00215"></a>00215 vec <a class="code" href="classbdm_1_1egiwmix.html#8bd92fb4c94a46220e84d9a39ddd2e28" title="return a sample from the density">sample</a>() <span class="keyword">const</span>; |
|---|
| 216 | <a name="l00216"></a>00216 |
|---|
| 217 | <a name="l00218"></a>00218 vec <a class="code" href="classbdm_1_1egiwmix.html#96e1cfb7157b87f04e2957ca4d883425" title="return the expected variance">variance</a>() <span class="keyword">const</span>; |
|---|
| 218 | <a name="l00219"></a>00219 |
|---|
| 219 | <a name="l00220"></a>00220 <span class="comment">// TODO!!! Defined to follow ANSI and/or for future development</span> |
|---|
| 220 | <a name="l00221"></a><a class="code" href="classbdm_1_1egiwmix.html#99962cd566fc4e6d59099dae6b7ecb8c">00221</a> <span class="keywordtype">void</span> <a class="code" href="classbdm_1_1egiwmix.html#99962cd566fc4e6d59099dae6b7ecb8c" title="expected values of the linear coefficient and the covariance matrix are written to...">mean_mat</a> ( mat &M, mat&R )<span class="keyword"> const </span>{}; |
|---|
| 221 | <a name="l00222"></a><a class="code" href="classbdm_1_1egiwmix.html#5713da45d66410382d6eca4e1b05a132">00222</a> <span class="keywordtype">double</span> <a class="code" href="classbdm_1_1egiwmix.html#5713da45d66410382d6eca4e1b05a132" title="In this instance, val= [theta, r]. For multivariate instances, it is stored columnwise...">evallog_nn</a> ( <span class="keyword">const</span> vec &val )<span class="keyword"> const </span>{ |
|---|
| 222 | <a name="l00223"></a>00223 <span class="keywordflow">return</span> 0; |
|---|
| 223 | <a name="l00224"></a>00224 }; |
|---|
| 224 | <a name="l00225"></a><a class="code" href="classbdm_1_1egiwmix.html#7c9bc72ecea861dd2416f852905bf023">00225</a> <span class="keywordtype">double</span> <a class="code" href="classbdm_1_1egiwmix.html#7c9bc72ecea861dd2416f852905bf023" title="logarithm of the normalizing constant, ">lognc</a> ()<span class="keyword"> const </span>{ |
|---|
| 225 | <a name="l00226"></a>00226 <span class="keywordflow">return</span> 0; |
|---|
| 226 | <a name="l00227"></a>00227 } |
|---|
| 227 | <a name="l00228"></a>00228 |
|---|
| 228 | <a name="l00229"></a>00229 <a class="code" href="classbdm_1_1shared__ptr.html">shared_ptr<epdf></a> <a class="code" href="classbdm_1_1egiwmix.html#ab30611d0ca7cc718956548a42a1f67d" title="Return marginal density on the given RV, the remainig rvs are intergrated out.">marginal</a> ( <span class="keyword">const</span> <a class="code" href="classbdm_1_1RV.html" title="Class representing variables, most often random variables.">RV</a> &<a class="code" href="classbdm_1_1epdf.html#62c5b8ff71d9ebe6cd58d3c342eb1dc8" title="Description of the random variable.">rv</a> ) <span class="keyword">const</span>; |
|---|
| 229 | <a name="l00230"></a>00230 <span class="keywordtype">void</span> <a class="code" href="classbdm_1_1egiwmix.html#ab30611d0ca7cc718956548a42a1f67d" title="Return marginal density on the given RV, the remainig rvs are intergrated out.">marginal</a> ( <span class="keyword">const</span> <a class="code" href="classbdm_1_1RV.html" title="Class representing variables, most often random variables.">RV</a> &<a class="code" href="classbdm_1_1epdf.html#62c5b8ff71d9ebe6cd58d3c342eb1dc8" title="Description of the random variable.">rv</a>, <a class="code" href="classbdm_1_1emix.html" title="Mixture of epdfs.">emix</a> &target ) <span class="keyword">const</span>; |
|---|
| 230 | <a name="l00231"></a>00231 |
|---|
| 231 | <a name="l00232"></a>00232 <span class="comment">//Access methods</span> |
|---|
| 232 | <a name="l00234"></a><a class="code" href="classbdm_1_1egiwmix.html#884d203ca3994b9fba4c8bd440f355ea">00234</a> <span class="comment"></span> vec& <a class="code" href="classbdm_1_1egiwmix.html#884d203ca3994b9fba4c8bd440f355ea" title="returns a pointer to the internal mean value. Use with Care!">_w</a>() { |
|---|
| 233 | <a name="l00235"></a>00235 <span class="keywordflow">return</span> <a class="code" href="classbdm_1_1egiwmix.html#2deb6d7cd689949b92450227de98afa4" title="weights of the components">w</a>; |
|---|
| 234 | <a name="l00236"></a>00236 } |
|---|
| 235 | <a name="l00237"></a>00237 <span class="keyword">virtual</span> ~<a class="code" href="classbdm_1_1egiwmix.html" title="Mixture of egiws.">egiwmix</a>() { |
|---|
| 236 | <a name="l00238"></a>00238 <span class="keywordflow">if</span> ( <a class="code" href="classbdm_1_1egiwmix.html#2a363169e5aa6c7cad1f4d7647fe9eec" title="Flag if owning Coms.">destroyComs</a> ) { |
|---|
| 237 | <a name="l00239"></a>00239 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 0; i < <a class="code" href="classbdm_1_1egiwmix.html#8d0a3acd6ced68349b8f9950f4658280" title="Component (epdfs).">Coms</a>.length(); i++ ) { |
|---|
| 238 | <a name="l00240"></a>00240 <span class="keyword">delete</span> <a class="code" href="classbdm_1_1egiwmix.html#8d0a3acd6ced68349b8f9950f4658280" title="Component (epdfs).">Coms</a> ( i ); |
|---|
| 239 | <a name="l00241"></a>00241 } |
|---|
| 240 | <a name="l00242"></a>00242 } |
|---|
| 241 | <a name="l00243"></a>00243 } |
|---|
| 242 | <a name="l00245"></a><a class="code" href="classbdm_1_1egiwmix.html#adc550fe74df25524c20867e89b5b096">00245</a> <span class="keywordtype">void</span> <a class="code" href="classbdm_1_1egiwmix.html#adc550fe74df25524c20867e89b5b096" title="Auxiliary function for taking ownership of the Coms().">ownComs</a>() { |
|---|
| 243 | <a name="l00246"></a>00246 <a class="code" href="classbdm_1_1egiwmix.html#2a363169e5aa6c7cad1f4d7647fe9eec" title="Flag if owning Coms.">destroyComs</a> = <span class="keyword">true</span>; |
|---|
| 244 | <a name="l00247"></a>00247 } |
|---|
| 245 | <a name="l00248"></a>00248 |
|---|
| 246 | <a name="l00250"></a><a class="code" href="classbdm_1_1egiwmix.html#d20a56a7b129c1ea9f71725e15f8ad8c">00250</a> <a class="code" href="classbdm_1_1egiw.html" title="Gauss-inverse-Wishart density stored in LD form.">egiw</a>* <a class="code" href="classbdm_1_1egiwmix.html#d20a56a7b129c1ea9f71725e15f8ad8c" title="access function">_Coms</a> ( <span class="keywordtype">int</span> i ) { |
|---|
| 247 | <a name="l00251"></a>00251 <span class="keywordflow">return</span> <a class="code" href="classbdm_1_1egiwmix.html#8d0a3acd6ced68349b8f9950f4658280" title="Component (epdfs).">Coms</a> ( i ); |
|---|
| 248 | <a name="l00252"></a>00252 } |
|---|
| 249 | <a name="l00253"></a>00253 |
|---|
| 250 | <a name="l00254"></a><a class="code" href="classbdm_1_1egiwmix.html#dc999c5c1402c450200f22128db688b2">00254</a> <span class="keywordtype">void</span> <a class="code" href="classbdm_1_1egiwmix.html#dc999c5c1402c450200f22128db688b2" title="Name its rv.">set_rv</a> ( <span class="keyword">const</span> <a class="code" href="classbdm_1_1RV.html" title="Class representing variables, most often random variables.">RV</a> &<a class="code" href="classbdm_1_1epdf.html#62c5b8ff71d9ebe6cd58d3c342eb1dc8" title="Description of the random variable.">rv</a> ) { |
|---|
| 251 | <a name="l00255"></a>00255 <a class="code" href="classbdm_1_1egiwmix.html#dc999c5c1402c450200f22128db688b2" title="Name its rv.">egiw::set_rv</a> ( rv ); |
|---|
| 252 | <a name="l00256"></a>00256 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 0; i < <a class="code" href="classbdm_1_1egiwmix.html#8d0a3acd6ced68349b8f9950f4658280" title="Component (epdfs).">Coms</a>.length(); i++ ) { |
|---|
| 253 | <a name="l00257"></a>00257 <a class="code" href="classbdm_1_1egiwmix.html#8d0a3acd6ced68349b8f9950f4658280" title="Component (epdfs).">Coms</a> ( i )->set_rv ( rv ); |
|---|
| 254 | <a name="l00258"></a>00258 } |
|---|
| 255 | <a name="l00259"></a>00259 } |
|---|
| 256 | <a name="l00260"></a>00260 |
|---|
| 257 | <a name="l00262"></a>00262 <a class="code" href="classbdm_1_1egiw.html" title="Gauss-inverse-Wishart density stored in LD form.">egiw</a>* <a class="code" href="classbdm_1_1egiwmix.html#10894d50e82130cc5b93d3cbc30b2e4d" title="Approximation of a GiW mix by a single GiW pdf.">approx</a>(); |
|---|
| 258 | <a name="l00263"></a>00263 }; |
|---|
| 259 | <a name="l00264"></a>00264 |
|---|
| 260 | <a name="l00273"></a><a class="code" href="classbdm_1_1mprod.html">00273</a> <span class="keyword">class </span><a class="code" href="classbdm_1_1mprod.html" title="Chain rule decomposition of epdf.">mprod</a>: <span class="keyword">public</span> <a class="code" href="classbdm_1_1mpdf.html" title="Conditional probability density, e.g. modeling , where is random variable, rv, and...">mpdf</a> { |
|---|
| 261 | <a name="l00274"></a>00274 <span class="keyword">private</span>: |
|---|
| 262 | <a name="l00275"></a>00275 Array<shared_ptr<mpdf> > mpdfs; |
|---|
| 263 | <a name="l00276"></a>00276 |
|---|
| 264 | <a name="l00277"></a>00277 <span class="keyword">protected</span>: |
|---|
| 265 | <a name="l00279"></a><a class="code" href="classbdm_1_1mprod.html#acf679b3b1d48629c5a042d9ac0d973f">00279</a> Array<datalink_m2m*> <a class="code" href="classbdm_1_1mprod.html#acf679b3b1d48629c5a042d9ac0d973f" title="Data link for each mpdfs.">dls</a>; |
|---|
| 266 | <a name="l00280"></a>00280 |
|---|
| 267 | <a name="l00282"></a><a class="code" href="classbdm_1_1mprod.html#9dab8448f970e2e09f76d14af990990d">00282</a> <a class="code" href="classbdm_1_1epdf.html" title="Probability density function with numerical statistics, e.g. posterior density.">epdf</a> <a class="code" href="classbdm_1_1mprod.html#9dab8448f970e2e09f76d14af990990d" title="dummy epdf used only as storage for RV and dim">iepdf</a>; |
|---|
| 268 | <a name="l00283"></a>00283 |
|---|
| 269 | <a name="l00284"></a>00284 <span class="keyword">public</span>: |
|---|
| 270 | <a name="l00286"></a><a class="code" href="classbdm_1_1mprod.html#fed864cdd0e724d9133e6c6bfcacf94b">00286</a> <a class="code" href="classbdm_1_1mprod.html#fed864cdd0e724d9133e6c6bfcacf94b" title="Default constructor.">mprod</a>() { } |
|---|
| 271 | <a name="l00287"></a>00287 |
|---|
| 272 | <a name="l00290"></a><a class="code" href="classbdm_1_1mprod.html#e0d61b25fa0955b2c5fab8c710c42200">00290</a> <a class="code" href="classbdm_1_1mprod.html#e0d61b25fa0955b2c5fab8c710c42200" title="Constructor from list of mFacs.">mprod</a> ( <span class="keyword">const</span> Array<<a class="code" href="classbdm_1_1shared__ptr.html">shared_ptr<mpdf></a> > &mFacs ) { |
|---|
| 273 | <a name="l00291"></a>00291 <a class="code" href="classbdm_1_1mprod.html#acb4cd6d390ef73a4432d0c4993baffa" title="Set internal mpdfs from given values.">set_elements</a> ( mFacs ); |
|---|
| 274 | <a name="l00292"></a>00292 } |
|---|
| 275 | <a name="l00294"></a>00294 <span class="keywordtype">void</span> <a class="code" href="classbdm_1_1mprod.html#acb4cd6d390ef73a4432d0c4993baffa" title="Set internal mpdfs from given values.">set_elements</a> (<span class="keyword">const</span> Array<<a class="code" href="classbdm_1_1shared__ptr.html">shared_ptr<mpdf></a> > &mFacs ); |
|---|
| 276 | <a name="l00295"></a>00295 |
|---|
| 277 | <a name="l00296"></a><a class="code" href="classbdm_1_1mprod.html#800f21d94c919137608a2fd5c88719e2">00296</a> <span class="keywordtype">double</span> <a class="code" href="classbdm_1_1mprod.html#800f21d94c919137608a2fd5c88719e2" title="Shortcut for conditioning and evaluation of the internal epdf. In some cases, this...">evallogcond</a> ( <span class="keyword">const</span> vec &val, <span class="keyword">const</span> vec &cond ) { |
|---|
| 278 | <a name="l00297"></a>00297 <span class="keywordtype">int</span> i; |
|---|
| 279 | <a name="l00298"></a>00298 <span class="keywordtype">double</span> res = 0.0; |
|---|
| 280 | <a name="l00299"></a>00299 <span class="keywordflow">for</span> ( i = mpdfs.length() - 1; i >= 0; i-- ) { |
|---|
| 281 | <a name="l00300"></a>00300 <span class="comment">/* if ( mpdfs(i)->_rvc().count() >0) {</span> |
|---|
| 282 | <a name="l00301"></a>00301 <span class="comment"> mpdfs ( i )->condition ( dls ( i )->get_cond ( val,cond ) );</span> |
|---|
| 283 | <a name="l00302"></a>00302 <span class="comment"> }</span> |
|---|
| 284 | <a name="l00303"></a>00303 <span class="comment"> // add logarithms</span> |
|---|
| 285 | <a name="l00304"></a>00304 <span class="comment"> res += epdfs ( i )->evallog ( dls ( i )->pushdown ( val ) );*/</span> |
|---|
| 286 | <a name="l00305"></a>00305 res += mpdfs ( i )->evallogcond ( |
|---|
| 287 | <a name="l00306"></a>00306 <a class="code" href="classbdm_1_1mprod.html#acf679b3b1d48629c5a042d9ac0d973f" title="Data link for each mpdfs.">dls</a> ( i )->pushdown ( val ), |
|---|
| 288 | <a name="l00307"></a>00307 <a class="code" href="classbdm_1_1mprod.html#acf679b3b1d48629c5a042d9ac0d973f" title="Data link for each mpdfs.">dls</a> ( i )->get_cond ( val, cond ) |
|---|
| 289 | <a name="l00308"></a>00308 ); |
|---|
| 290 | <a name="l00309"></a>00309 } |
|---|
| 291 | <a name="l00310"></a>00310 <span class="keywordflow">return</span> res; |
|---|
| 292 | <a name="l00311"></a>00311 } |
|---|
| 293 | <a name="l00312"></a><a class="code" href="classbdm_1_1mprod.html#e27b359d2572abfa4cc7d8f947848dab">00312</a> vec <a class="code" href="classbdm_1_1mprod.html#e27b359d2572abfa4cc7d8f947848dab" title="Matrix version of evallogcond.">evallogcond_m</a> ( <span class="keyword">const</span> mat &Dt, <span class="keyword">const</span> vec &cond ) { |
|---|
| 294 | <a name="l00313"></a>00313 vec tmp ( Dt.cols() ); |
|---|
| 295 | <a name="l00314"></a>00314 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 0; i < Dt.cols(); i++ ) { |
|---|
| 296 | <a name="l00315"></a>00315 tmp ( i ) = <a class="code" href="classbdm_1_1mprod.html#800f21d94c919137608a2fd5c88719e2" title="Shortcut for conditioning and evaluation of the internal epdf. In some cases, this...">evallogcond</a> ( Dt.get_col ( i ), cond ); |
|---|
| 297 | <a name="l00316"></a>00316 } |
|---|
| 298 | <a name="l00317"></a>00317 <span class="keywordflow">return</span> tmp; |
|---|
| 299 | <a name="l00318"></a>00318 }; |
|---|
| 300 | <a name="l00319"></a><a class="code" href="classbdm_1_1mprod.html#e8cdde6056fe20551be1fa460841f5e2">00319</a> vec <a class="code" href="classbdm_1_1mprod.html#e8cdde6056fe20551be1fa460841f5e2" title="Array&lt;vec&gt; version of evallogcond.">evallogcond_m</a> ( <span class="keyword">const</span> Array<vec> &Dt, <span class="keyword">const</span> vec &cond ) { |
|---|
| 301 | <a name="l00320"></a>00320 vec tmp ( Dt.length() ); |
|---|
| 302 | <a name="l00321"></a>00321 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 0; i < Dt.length(); i++ ) { |
|---|
| 303 | <a name="l00322"></a>00322 tmp ( i ) = <a class="code" href="classbdm_1_1mprod.html#800f21d94c919137608a2fd5c88719e2" title="Shortcut for conditioning and evaluation of the internal epdf. In some cases, this...">evallogcond</a> ( Dt ( i ), cond ); |
|---|
| 304 | <a name="l00323"></a>00323 } |
|---|
| 305 | <a name="l00324"></a>00324 <span class="keywordflow">return</span> tmp; |
|---|
| 306 | <a name="l00325"></a>00325 }; |
|---|
| 307 | <a name="l00326"></a>00326 |
|---|
| 308 | <a name="l00327"></a>00327 |
|---|
| 309 | <a name="l00328"></a>00328 <span class="comment">//TODO smarter...</span> |
|---|
| 310 | <a name="l00329"></a><a class="code" href="classbdm_1_1mprod.html#ee715a8013acf9892f6cb489db595555">00329</a> vec <a class="code" href="classbdm_1_1mprod.html#ee715a8013acf9892f6cb489db595555" title="Returns a sample from the density conditioned on cond, .">samplecond</a> ( <span class="keyword">const</span> vec &cond ) { |
|---|
| 311 | <a name="l00331"></a>00331 vec smp = std::numeric_limits<double>::infinity() * ones ( dimension() ); |
|---|
| 312 | <a name="l00332"></a>00332 vec smpi; |
|---|
| 313 | <a name="l00333"></a>00333 <span class="comment">// Hard assumption here!!! We are going backwards, to assure that samples that are needed from smp are already generated!</span> |
|---|
| 314 | <a name="l00334"></a>00334 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = ( mpdfs.length() - 1 ); i >= 0; i-- ) { |
|---|
| 315 | <a name="l00335"></a>00335 <span class="comment">// generate contribution of this mpdf</span> |
|---|
| 316 | <a name="l00336"></a>00336 smpi = mpdfs(i)->samplecond(<a class="code" href="classbdm_1_1mprod.html#acf679b3b1d48629c5a042d9ac0d973f" title="Data link for each mpdfs.">dls</a> ( i )->get_cond ( smp , cond )); |
|---|
| 317 | <a name="l00337"></a>00337 <span class="comment">// copy contribution of this pdf into smp</span> |
|---|
| 318 | <a name="l00338"></a>00338 <a class="code" href="classbdm_1_1mprod.html#acf679b3b1d48629c5a042d9ac0d973f" title="Data link for each mpdfs.">dls</a> ( i )->pushup ( smp, smpi ); |
|---|
| 319 | <a name="l00339"></a>00339 } |
|---|
| 320 | <a name="l00340"></a>00340 <span class="keywordflow">return</span> smp; |
|---|
| 321 | <a name="l00341"></a>00341 } |
|---|
| 322 | <a name="l00342"></a>00342 mat <a class="code" href="classbdm_1_1mprod.html#ee715a8013acf9892f6cb489db595555" title="Returns a sample from the density conditioned on cond, .">samplecond</a> ( <span class="keyword">const</span> vec &cond, <span class="keywordtype">int</span> N ) { |
|---|
| 323 | <a name="l00343"></a>00343 mat Smp ( dimension(), N ); |
|---|
| 324 | <a name="l00344"></a>00344 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 0; i < N; i++ ) { |
|---|
| 325 | <a name="l00345"></a>00345 Smp.set_col ( i, <a class="code" href="classbdm_1_1mprod.html#ee715a8013acf9892f6cb489db595555" title="Returns a sample from the density conditioned on cond, .">samplecond</a> ( cond ) ); |
|---|
| 326 | <a name="l00346"></a>00346 } |
|---|
| 327 | <a name="l00347"></a>00347 <span class="keywordflow">return</span> Smp; |
|---|
| 328 | <a name="l00348"></a>00348 } |
|---|
| 329 | <a name="l00349"></a>00349 |
|---|
| 330 | <a name="l00357"></a><a class="code" href="classbdm_1_1mprod.html#bfa7478f8df1de6d8cd4c349db512831">00357</a> <span class="keywordtype">void</span> <a class="code" href="classbdm_1_1mprod.html#bfa7478f8df1de6d8cd4c349db512831">from_setting</a> ( <span class="keyword">const</span> Setting &<span class="keyword">set</span> ) { |
|---|
| 331 | <a name="l00358"></a>00358 Array<shared_ptr<mpdf> > atmp; <span class="comment">//temporary Array</span> |
|---|
| 332 | <a name="l00359"></a>00359 <a class="code" href="classbdm_1_1UI.html#cd1667e6fec99ec64dabcb3ca2ff922d">UI::get</a> ( atmp, <span class="keyword">set</span>, <span class="stringliteral">"mpdfs"</span>, UI::compulsory ); |
|---|
| 333 | <a name="l00360"></a>00360 <a class="code" href="classbdm_1_1mprod.html#acb4cd6d390ef73a4432d0c4993baffa" title="Set internal mpdfs from given values.">set_elements</a> ( atmp ); |
|---|
| 334 | <a name="l00361"></a>00361 } |
|---|
| 335 | <a name="l00362"></a>00362 |
|---|
| 336 | <a name="l00363"></a>00363 }; |
|---|
| 337 | <a name="l00364"></a>00364 <a class="code" href="user__info_8h.html#4f9de2f17e844047726487b99def99c6" title="Macro for registration of class into map of user-infos, registered class is scriptable...">UIREGISTER</a> ( mprod ); |
|---|
| 338 | <a name="l00365"></a>00365 SHAREDPTR ( mprod ); |
|---|
| 339 | <a name="l00366"></a>00366 |
|---|
| 340 | <a name="l00368"></a><a class="code" href="classbdm_1_1eprod.html">00368</a> <span class="keyword">class </span><a class="code" href="classbdm_1_1eprod.html" title="Product of independent epdfs. For dependent pdfs, use mprod.">eprod</a>: <span class="keyword">public</span> <a class="code" href="classbdm_1_1epdf.html" title="Probability density function with numerical statistics, e.g. posterior density.">epdf</a> { |
|---|
| 341 | <a name="l00369"></a>00369 <span class="keyword">protected</span>: |
|---|
| 342 | <a name="l00371"></a><a class="code" href="classbdm_1_1eprod.html#fa0b0981730f0a8339b9ff3e29d78391">00371</a> Array<const epdf*> <a class="code" href="classbdm_1_1eprod.html#fa0b0981730f0a8339b9ff3e29d78391" title="Components (epdfs).">epdfs</a>; |
|---|
| 343 | <a name="l00373"></a><a class="code" href="classbdm_1_1eprod.html#6b5a9be71a644f6009e7beda6c762a43">00373</a> Array<datalink*> <a class="code" href="classbdm_1_1eprod.html#6b5a9be71a644f6009e7beda6c762a43" title="Array of indeces.">dls</a>; |
|---|
| 344 | <a name="l00374"></a>00374 <span class="keyword">public</span>: |
|---|
| 345 | <a name="l00376"></a><a class="code" href="classbdm_1_1eprod.html#9bd36af548d5c350ebe62599aacf91ba">00376</a> <a class="code" href="classbdm_1_1eprod.html#9bd36af548d5c350ebe62599aacf91ba" title="Default constructor.">eprod</a> () : <a class="code" href="classbdm_1_1eprod.html#fa0b0981730f0a8339b9ff3e29d78391" title="Components (epdfs).">epdfs</a> ( 0 ), <a class="code" href="classbdm_1_1eprod.html#6b5a9be71a644f6009e7beda6c762a43" title="Array of indeces.">dls</a> ( 0 ) {}; |
|---|
| 346 | <a name="l00378"></a><a class="code" href="classbdm_1_1eprod.html#7f0f526ddcd028c5edaecf250ef780f6">00378</a> <span class="keywordtype">void</span> <a class="code" href="classbdm_1_1eprod.html#7f0f526ddcd028c5edaecf250ef780f6" title="Set internal.">set_parameters</a> ( <span class="keyword">const</span> Array<const epdf*> &epdfs0, <span class="keywordtype">bool</span> named = <span class="keyword">true</span> ) { |
|---|
| 347 | <a name="l00379"></a>00379 <a class="code" href="classbdm_1_1eprod.html#fa0b0981730f0a8339b9ff3e29d78391" title="Components (epdfs).">epdfs</a> = epdfs0;<span class="comment">//.set_length ( epdfs0.length() );</span> |
|---|
| 348 | <a name="l00380"></a>00380 <a class="code" href="classbdm_1_1eprod.html#6b5a9be71a644f6009e7beda6c762a43" title="Array of indeces.">dls</a>.set_length ( <a class="code" href="classbdm_1_1eprod.html#fa0b0981730f0a8339b9ff3e29d78391" title="Components (epdfs).">epdfs</a>.length() ); |
|---|
| 349 | <a name="l00381"></a>00381 |
|---|
| 350 | <a name="l00382"></a>00382 <span class="keywordtype">bool</span> independent = <span class="keyword">true</span>; |
|---|
| 351 | <a name="l00383"></a>00383 <span class="keywordflow">if</span> ( named ) { |
|---|
| 352 | <a name="l00384"></a>00384 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 0; i < <a class="code" href="classbdm_1_1eprod.html#fa0b0981730f0a8339b9ff3e29d78391" title="Components (epdfs).">epdfs</a>.length(); i++ ) { |
|---|
| 353 | <a name="l00385"></a>00385 independent = <a class="code" href="classbdm_1_1epdf.html#62c5b8ff71d9ebe6cd58d3c342eb1dc8" title="Description of the random variable.">rv</a>.<a class="code" href="classbdm_1_1RV.html#87841b5ee43997b79789c0c22047e224" title="Add (concat) another variable to the current one,.">add</a> ( <a class="code" href="classbdm_1_1eprod.html#fa0b0981730f0a8339b9ff3e29d78391" title="Components (epdfs).">epdfs</a> ( i )-><a class="code" href="classbdm_1_1epdf.html#a4ab378d5e004c3ff3e2d4e64f7bba21" title="Return name (fails when isnamed is false).">_rv</a>() ); |
|---|
| 354 | <a name="l00386"></a>00386 it_assert_debug ( independent == <span class="keyword">true</span>, <span class="stringliteral">"eprod:: given components are not independent."</span> ); |
|---|
| 355 | <a name="l00387"></a>00387 } |
|---|
| 356 | <a name="l00388"></a>00388 <a class="code" href="classbdm_1_1epdf.html#16adac20ec7fe07e1ea0b27d917788ce" title="dimension of the random variable">dim</a> = <a class="code" href="classbdm_1_1epdf.html#62c5b8ff71d9ebe6cd58d3c342eb1dc8" title="Description of the random variable.">rv</a>.<a class="code" href="classbdm_1_1RV.html#de30156104f61d86c94f758861418089">_dsize</a>(); |
|---|
| 357 | <a name="l00389"></a>00389 } <span class="keywordflow">else</span> { |
|---|
| 358 | <a name="l00390"></a>00390 <a class="code" href="classbdm_1_1epdf.html#16adac20ec7fe07e1ea0b27d917788ce" title="dimension of the random variable">dim</a> = 0; |
|---|
| 359 | <a name="l00391"></a>00391 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 0; i < <a class="code" href="classbdm_1_1eprod.html#fa0b0981730f0a8339b9ff3e29d78391" title="Components (epdfs).">epdfs</a>.length(); i++ ) { |
|---|
| 360 | <a name="l00392"></a>00392 <a class="code" href="classbdm_1_1epdf.html#16adac20ec7fe07e1ea0b27d917788ce" title="dimension of the random variable">dim</a> += <a class="code" href="classbdm_1_1eprod.html#fa0b0981730f0a8339b9ff3e29d78391" title="Components (epdfs).">epdfs</a> ( i )->dimension(); |
|---|
| 361 | <a name="l00393"></a>00393 } |
|---|
| 362 | <a name="l00394"></a>00394 } |
|---|
| 363 | <a name="l00395"></a>00395 <span class="comment">//</span> |
|---|
| 364 | <a name="l00396"></a>00396 <span class="keywordtype">int</span> cumdim = 0; |
|---|
| 365 | <a name="l00397"></a>00397 <span class="keywordtype">int</span> dimi = 0; |
|---|
| 366 | <a name="l00398"></a>00398 <span class="keywordtype">int</span> i; |
|---|
| 367 | <a name="l00399"></a>00399 <span class="keywordflow">for</span> ( i = 0; i < <a class="code" href="classbdm_1_1eprod.html#fa0b0981730f0a8339b9ff3e29d78391" title="Components (epdfs).">epdfs</a>.length(); i++ ) { |
|---|
| 368 | <a name="l00400"></a>00400 <a class="code" href="classbdm_1_1eprod.html#6b5a9be71a644f6009e7beda6c762a43" title="Array of indeces.">dls</a> ( i ) = <span class="keyword">new</span> <a class="code" href="classbdm_1_1datalink.html" title="DataLink is a connection between two data vectors Up and Down.">datalink</a>; |
|---|
| 369 | <a name="l00401"></a>00401 <span class="keywordflow">if</span> ( named ) { |
|---|
| 370 | <a name="l00402"></a>00402 <a class="code" href="classbdm_1_1eprod.html#6b5a9be71a644f6009e7beda6c762a43" title="Array of indeces.">dls</a> ( i )->set_connection ( <a class="code" href="classbdm_1_1eprod.html#fa0b0981730f0a8339b9ff3e29d78391" title="Components (epdfs).">epdfs</a> ( i )-><a class="code" href="classbdm_1_1epdf.html#a4ab378d5e004c3ff3e2d4e64f7bba21" title="Return name (fails when isnamed is false).">_rv</a>() , <a class="code" href="classbdm_1_1epdf.html#62c5b8ff71d9ebe6cd58d3c342eb1dc8" title="Description of the random variable.">rv</a> ); |
|---|
| 371 | <a name="l00403"></a>00403 } <span class="keywordflow">else</span> { |
|---|
| 372 | <a name="l00404"></a>00404 dimi = <a class="code" href="classbdm_1_1eprod.html#fa0b0981730f0a8339b9ff3e29d78391" title="Components (epdfs).">epdfs</a> ( i )->dimension(); |
|---|
| 373 | <a name="l00405"></a>00405 <a class="code" href="classbdm_1_1eprod.html#6b5a9be71a644f6009e7beda6c762a43" title="Array of indeces.">dls</a> ( i )->set_connection ( dimi, <a class="code" href="classbdm_1_1epdf.html#16adac20ec7fe07e1ea0b27d917788ce" title="dimension of the random variable">dim</a>, linspace ( cumdim, cumdim + dimi - 1 ) ); |
|---|
| 374 | <a name="l00406"></a>00406 cumdim += dimi; |
|---|
| 375 | <a name="l00407"></a>00407 } |
|---|
| 376 | <a name="l00408"></a>00408 } |
|---|
| 377 | <a name="l00409"></a>00409 } |
|---|
| 378 | <a name="l00410"></a>00410 |
|---|
| 379 | <a name="l00411"></a><a class="code" href="classbdm_1_1eprod.html#1d494351e7e385ad3382387c96915d24">00411</a> vec <a class="code" href="classbdm_1_1eprod.html#1d494351e7e385ad3382387c96915d24" title="return expected value">mean</a>()<span class="keyword"> const </span>{ |
|---|
| 380 | <a name="l00412"></a>00412 vec tmp ( <a class="code" href="classbdm_1_1epdf.html#16adac20ec7fe07e1ea0b27d917788ce" title="dimension of the random variable">dim</a> ); |
|---|
| 381 | <a name="l00413"></a>00413 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 0; i < <a class="code" href="classbdm_1_1eprod.html#fa0b0981730f0a8339b9ff3e29d78391" title="Components (epdfs).">epdfs</a>.length(); i++ ) { |
|---|
| 382 | <a name="l00414"></a>00414 vec pom = <a class="code" href="classbdm_1_1eprod.html#fa0b0981730f0a8339b9ff3e29d78391" title="Components (epdfs).">epdfs</a> ( i )->mean(); |
|---|
| 383 | <a name="l00415"></a>00415 <a class="code" href="classbdm_1_1eprod.html#6b5a9be71a644f6009e7beda6c762a43" title="Array of indeces.">dls</a> ( i )->pushup ( tmp, pom ); |
|---|
| 384 | <a name="l00416"></a>00416 } |
|---|
| 385 | <a name="l00417"></a>00417 <span class="keywordflow">return</span> tmp; |
|---|
| 386 | <a name="l00418"></a>00418 } |
|---|
| 387 | <a name="l00419"></a><a class="code" href="classbdm_1_1eprod.html#cc53a151f5ac5dfba68d425acc3a5615">00419</a> vec <a class="code" href="classbdm_1_1eprod.html#cc53a151f5ac5dfba68d425acc3a5615" title="return expected variance (not covariance!)">variance</a>()<span class="keyword"> const </span>{ |
|---|
| 388 | <a name="l00420"></a>00420 vec tmp ( <a class="code" href="classbdm_1_1epdf.html#16adac20ec7fe07e1ea0b27d917788ce" title="dimension of the random variable">dim</a> ); <span class="comment">//second moment</span> |
|---|
| 389 | <a name="l00421"></a>00421 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 0; i < <a class="code" href="classbdm_1_1eprod.html#fa0b0981730f0a8339b9ff3e29d78391" title="Components (epdfs).">epdfs</a>.length(); i++ ) { |
|---|
| 390 | <a name="l00422"></a>00422 vec pom = <a class="code" href="classbdm_1_1eprod.html#fa0b0981730f0a8339b9ff3e29d78391" title="Components (epdfs).">epdfs</a> ( i )->mean(); |
|---|
| 391 | <a name="l00423"></a>00423 <a class="code" href="classbdm_1_1eprod.html#6b5a9be71a644f6009e7beda6c762a43" title="Array of indeces.">dls</a> ( i )->pushup ( tmp, pow ( pom, 2 ) ); |
|---|
| 392 | <a name="l00424"></a>00424 } |
|---|
| 393 | <a name="l00425"></a>00425 <span class="keywordflow">return</span> tmp - pow ( <a class="code" href="classbdm_1_1eprod.html#1d494351e7e385ad3382387c96915d24" title="return expected value">mean</a>(), 2 ); |
|---|
| 394 | <a name="l00426"></a>00426 } |
|---|
| 395 | <a name="l00427"></a><a class="code" href="classbdm_1_1eprod.html#af48debea25d3473bcb71b6a77fac741">00427</a> vec <a class="code" href="classbdm_1_1eprod.html#af48debea25d3473bcb71b6a77fac741" title="Returns a sample, from density .">sample</a>()<span class="keyword"> const </span>{ |
|---|
| 396 | <a name="l00428"></a>00428 vec tmp ( <a class="code" href="classbdm_1_1epdf.html#16adac20ec7fe07e1ea0b27d917788ce" title="dimension of the random variable">dim</a> ); |
|---|
| 397 | <a name="l00429"></a>00429 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 0; i < <a class="code" href="classbdm_1_1eprod.html#fa0b0981730f0a8339b9ff3e29d78391" title="Components (epdfs).">epdfs</a>.length(); i++ ) { |
|---|
| 398 | <a name="l00430"></a>00430 vec pom = <a class="code" href="classbdm_1_1eprod.html#fa0b0981730f0a8339b9ff3e29d78391" title="Components (epdfs).">epdfs</a> ( i )->sample(); |
|---|
| 399 | <a name="l00431"></a>00431 <a class="code" href="classbdm_1_1eprod.html#6b5a9be71a644f6009e7beda6c762a43" title="Array of indeces.">dls</a> ( i )->pushup ( tmp, pom ); |
|---|
| 400 | <a name="l00432"></a>00432 } |
|---|
| 401 | <a name="l00433"></a>00433 <span class="keywordflow">return</span> tmp; |
|---|
| 402 | <a name="l00434"></a>00434 } |
|---|
| 403 | <a name="l00435"></a><a class="code" href="classbdm_1_1eprod.html#a5a91e67d2f74ff2b0b8eecde2fa42e2">00435</a> <span class="keywordtype">double</span> <a class="code" href="classbdm_1_1eprod.html#a5a91e67d2f74ff2b0b8eecde2fa42e2">evallog</a> ( <span class="keyword">const</span> vec &val )<span class="keyword"> const </span>{ |
|---|
| 404 | <a name="l00436"></a>00436 <span class="keywordtype">double</span> tmp = 0; |
|---|
| 405 | <a name="l00437"></a>00437 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 0; i < <a class="code" href="classbdm_1_1eprod.html#fa0b0981730f0a8339b9ff3e29d78391" title="Components (epdfs).">epdfs</a>.length(); i++ ) { |
|---|
| 406 | <a name="l00438"></a>00438 tmp += <a class="code" href="classbdm_1_1eprod.html#fa0b0981730f0a8339b9ff3e29d78391" title="Components (epdfs).">epdfs</a> ( i )->evallog ( <a class="code" href="classbdm_1_1eprod.html#6b5a9be71a644f6009e7beda6c762a43" title="Array of indeces.">dls</a> ( i )->pushdown ( val ) ); |
|---|
| 407 | <a name="l00439"></a>00439 } |
|---|
| 408 | <a name="l00440"></a>00440 it_assert_debug ( std::isfinite ( tmp ), <span class="stringliteral">"Infinite"</span> ); |
|---|
| 409 | <a name="l00441"></a>00441 <span class="keywordflow">return</span> tmp; |
|---|
| 410 | <a name="l00442"></a>00442 } |
|---|
| 411 | <a name="l00444"></a><a class="code" href="classbdm_1_1eprod.html#5194b47dd05a5886e0745250b6704953">00444</a> <span class="keyword">const</span> <a class="code" href="classbdm_1_1epdf.html" title="Probability density function with numerical statistics, e.g. posterior density.">epdf</a>* <a class="code" href="classbdm_1_1eprod.html#5194b47dd05a5886e0745250b6704953" title="access function">operator () </a>( <span class="keywordtype">int</span> i )<span class="keyword"> const </span>{ |
|---|
| 412 | <a name="l00445"></a>00445 it_assert_debug ( i < <a class="code" href="classbdm_1_1eprod.html#fa0b0981730f0a8339b9ff3e29d78391" title="Components (epdfs).">epdfs</a>.length(), <span class="stringliteral">"wrong index"</span> ); |
|---|
| 413 | <a name="l00446"></a>00446 <span class="keywordflow">return</span> <a class="code" href="classbdm_1_1eprod.html#fa0b0981730f0a8339b9ff3e29d78391" title="Components (epdfs).">epdfs</a> ( i ); |
|---|
| 414 | <a name="l00447"></a>00447 } |
|---|
| 415 | <a name="l00448"></a>00448 |
|---|
| 416 | <a name="l00450"></a><a class="code" href="classbdm_1_1eprod.html#708b37971aab3667f20e325c358632cf">00450</a> <a class="code" href="classbdm_1_1eprod.html#708b37971aab3667f20e325c358632cf" title="Destructor.">~eprod</a>() { |
|---|
| 417 | <a name="l00451"></a>00451 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 0; i < <a class="code" href="classbdm_1_1eprod.html#fa0b0981730f0a8339b9ff3e29d78391" title="Components (epdfs).">epdfs</a>.length(); i++ ) { |
|---|
| 418 | <a name="l00452"></a>00452 <span class="keyword">delete</span> <a class="code" href="classbdm_1_1eprod.html#6b5a9be71a644f6009e7beda6c762a43" title="Array of indeces.">dls</a> ( i ); |
|---|
| 419 | <a name="l00453"></a>00453 } |
|---|
| 420 | <a name="l00454"></a>00454 } |
|---|
| 421 | <a name="l00455"></a>00455 }; |
|---|
| 422 | <a name="l00456"></a>00456 |
|---|
| 423 | <a name="l00457"></a>00457 |
|---|
| 424 | <a name="l00461"></a><a class="code" href="classbdm_1_1mmix.html">00461</a> <span class="keyword">class </span><a class="code" href="classbdm_1_1mmix.html" title="Mixture of mpdfs with constant weights, all mpdfs are of equal RV and RVC.">mmix</a> : <span class="keyword">public</span> <a class="code" href="classbdm_1_1mpdf.html" title="Conditional probability density, e.g. modeling , where is random variable, rv, and...">mpdf</a> { |
|---|
| 425 | <a name="l00462"></a>00462 <span class="keyword">protected</span>: |
|---|
| 426 | <a name="l00464"></a><a class="code" href="classbdm_1_1mmix.html#63013f8c57dfb51babc3be7fc5d05809">00464</a> Array<shared_ptr<mpdf> > <a class="code" href="classbdm_1_1mmix.html#63013f8c57dfb51babc3be7fc5d05809" title="Component (mpdfs).">Coms</a>; |
|---|
| 427 | <a name="l00466"></a><a class="code" href="classbdm_1_1mmix.html#f23a22414419b3a4a0a7d97157a03b17">00466</a> vec <a class="code" href="classbdm_1_1mmix.html#f23a22414419b3a4a0a7d97157a03b17" title="weights of the components">w</a>; |
|---|
| 428 | <a name="l00468"></a><a class="code" href="classbdm_1_1mmix.html#8c740fff8807cb7f1df6a7e510e10805">00468</a> <a class="code" href="classbdm_1_1epdf.html" title="Probability density function with numerical statistics, e.g. posterior density.">epdf</a> <a class="code" href="classbdm_1_1mmix.html#8c740fff8807cb7f1df6a7e510e10805" title="dummy epdfs">dummy_epdf</a>; |
|---|
| 429 | <a name="l00469"></a>00469 <span class="keyword">public</span>: |
|---|
| 430 | <a name="l00471"></a><a class="code" href="classbdm_1_1mmix.html#a0cf51b7daeb6751103e94e6b96213fb">00471</a> <a class="code" href="classbdm_1_1mmix.html#a0cf51b7daeb6751103e94e6b96213fb" title="Default constructor.">mmix</a>() : <a class="code" href="classbdm_1_1mmix.html#63013f8c57dfb51babc3be7fc5d05809" title="Component (mpdfs).">Coms</a>(0), <a class="code" href="classbdm_1_1mmix.html#8c740fff8807cb7f1df6a7e510e10805" title="dummy epdfs">dummy_epdf</a>() { <a class="code" href="classbdm_1_1mpdf.html#147afacb393324bb3f9a7a89e33f835e" title="set internal pointer ep to point to given iepdf ">set_ep</a>(<a class="code" href="classbdm_1_1mmix.html#8c740fff8807cb7f1df6a7e510e10805" title="dummy epdfs">dummy_epdf</a>); } |
|---|
| 431 | <a name="l00472"></a>00472 |
|---|
| 432 | <a name="l00474"></a><a class="code" href="classbdm_1_1mmix.html#77f4e69ba18e685bdd1cb92e256a2ea2">00474</a> <span class="keywordtype">void</span> <a class="code" href="classbdm_1_1mmix.html#77f4e69ba18e685bdd1cb92e256a2ea2" title="Set weights w and components R.">set_parameters</a> ( <span class="keyword">const</span> vec &w0, <span class="keyword">const</span> Array<<a class="code" href="classbdm_1_1shared__ptr.html">shared_ptr<mpdf></a> > &Coms0 ) { |
|---|
| 433 | <a name="l00476"></a>00476 <a class="code" href="classbdm_1_1mmix.html#63013f8c57dfb51babc3be7fc5d05809" title="Component (mpdfs).">Coms</a> = Coms0; |
|---|
| 434 | <a name="l00477"></a>00477 <a class="code" href="classbdm_1_1mmix.html#f23a22414419b3a4a0a7d97157a03b17" title="weights of the components">w</a>=w0; |
|---|
| 435 | <a name="l00478"></a>00478 |
|---|
| 436 | <a name="l00479"></a>00479 <span class="keywordflow">if</span> (Coms0.length()>0){ |
|---|
| 437 | <a name="l00480"></a>00480 set_rv(<a class="code" href="classbdm_1_1mmix.html#63013f8c57dfb51babc3be7fc5d05809" title="Component (mpdfs).">Coms</a>(0)->_rv()); |
|---|
| 438 | <a name="l00481"></a>00481 <a class="code" href="classbdm_1_1mmix.html#8c740fff8807cb7f1df6a7e510e10805" title="dummy epdfs">dummy_epdf</a>.<a class="code" href="classbdm_1_1epdf.html#840de94aa33cf4f2ebd2427f45a165d8">set_parameters</a>(<a class="code" href="classbdm_1_1mmix.html#63013f8c57dfb51babc3be7fc5d05809" title="Component (mpdfs).">Coms</a>(0)->_rv()._dsize()); |
|---|
| 439 | <a name="l00482"></a>00482 set_rvc(<a class="code" href="classbdm_1_1mmix.html#63013f8c57dfb51babc3be7fc5d05809" title="Component (mpdfs).">Coms</a>(0)->_rvc()); |
|---|
| 440 | <a name="l00483"></a>00483 <a class="code" href="classbdm_1_1mpdf.html#7c1900976ff13dbc09c9729b3bbff9e6" title="dimension of the condition">dimc</a> = <a class="code" href="classbdm_1_1mpdf.html#5a5f08950daa08b85b01ddf4e1c36288" title="random variable in condition">rvc</a>.<a class="code" href="classbdm_1_1RV.html#de30156104f61d86c94f758861418089">_dsize</a>(); |
|---|
| 441 | <a name="l00484"></a>00484 } |
|---|
| 442 | <a name="l00485"></a>00485 } |
|---|
| 443 | <a name="l00486"></a><a class="code" href="classbdm_1_1mmix.html#33372bfd0ddbcb9f78b4d4b563a24624">00486</a> <span class="keywordtype">double</span> <a class="code" href="classbdm_1_1mmix.html#33372bfd0ddbcb9f78b4d4b563a24624" title="Shortcut for conditioning and evaluation of the internal epdf. In some cases, this...">evallogcond</a> (<span class="keyword">const</span> vec &dt, <span class="keyword">const</span> vec &cond) { |
|---|
| 444 | <a name="l00487"></a>00487 <span class="keywordtype">double</span> ll=0.0; |
|---|
| 445 | <a name="l00488"></a>00488 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0;i<<a class="code" href="classbdm_1_1mmix.html#63013f8c57dfb51babc3be7fc5d05809" title="Component (mpdfs).">Coms</a>.length();i++){ |
|---|
| 446 | <a name="l00489"></a>00489 ll+=<a class="code" href="classbdm_1_1mmix.html#63013f8c57dfb51babc3be7fc5d05809" title="Component (mpdfs).">Coms</a>(i)->evallogcond(dt,cond); |
|---|
| 447 | <a name="l00490"></a>00490 } |
|---|
| 448 | <a name="l00491"></a>00491 <span class="keywordflow">return</span> ll; |
|---|
| 449 | <a name="l00492"></a>00492 } |
|---|
| 450 | <a name="l00493"></a>00493 |
|---|
| 451 | <a name="l00494"></a>00494 vec <a class="code" href="classbdm_1_1mmix.html#c97f01cd62bf63e67ddd5b1b8a56cf59" title="Returns a sample from the density conditioned on cond, .">samplecond</a> (<span class="keyword">const</span> vec &cond); |
|---|
| 452 | <a name="l00495"></a>00495 |
|---|
| 453 | <a name="l00496"></a>00496 }; |
|---|
| 454 | <a name="l00497"></a>00497 |
|---|
| 455 | <a name="l00498"></a>00498 } |
|---|
| 456 | <a name="l00499"></a>00499 <span class="preprocessor">#endif //MX_H</span> |
|---|
| 457 | </pre></div></div> |
|---|
| 458 | <hr size="1"><address style="text-align: right;"><small>Generated on Sun Aug 16 17:58:18 2009 for mixpp by |
|---|
| 459 | <a href="http://www.doxygen.org/index.html"> |
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| 460 | <img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.8 </small></address> |
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| 461 | </body> |
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| 462 | </html> |
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