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Changes in the very root classes!
* rv and rvc are no longer compulsory,
* samplecond does not return ll
* BM has drv

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19<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
20<a name="l00013"></a>00013 <span class="preprocessor">#ifndef MX_H</span>
21<a name="l00014"></a>00014 <span class="preprocessor"></span><span class="preprocessor">#define MX_H</span>
22<a name="l00015"></a>00015 <span class="preprocessor"></span>
23<a name="l00016"></a>00016 <span class="preprocessor">#include "<a class="code" href="libBM_8h.html" title="Bayesian Models (bm) that use Bayes rule to learn from observations.">libBM.h</a>"</span>
24<a name="l00017"></a>00017 <span class="preprocessor">#include "<a class="code" href="libEF_8h.html" title="Probability distributions for Exponential Family models.">libEF.h</a>"</span>
25<a name="l00018"></a>00018 <span class="comment">//#include &lt;std&gt;</span>
26<a name="l00019"></a>00019
27<a name="l00020"></a>00020 <span class="keyword">namespace </span>bdm{
28<a name="l00021"></a>00021
29<a name="l00022"></a>00022 <span class="comment">//this comes first because it is used inside emix!</span>
30<a name="l00023"></a>00023
31<a name="l00036"></a><a class="code" href="classbdm_1_1mratio.html">00036</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 some dependencies.">mpdf</a> {
32<a name="l00037"></a>00037 <span class="keyword">protected</span>:
33<a name="l00039"></a><a class="code" href="classbdm_1_1mratio.html#f31caba90a2aa10fbf7631832404fe54">00039</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>;
34<a name="l00041"></a><a class="code" href="classbdm_1_1mratio.html#7daa5d02d3a3be9d15fd4156d886ed88">00041</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#7daa5d02d3a3be9d15fd4156d886ed88" title="Denominator in the form of epdf.">den</a>;
35<a name="l00043"></a><a class="code" href="classbdm_1_1mratio.html#51bfe6675e724f7fbeaaeacce5a9f9b8">00043</a>         <span class="keywordtype">bool</span> <a class="code" href="classbdm_1_1mratio.html#51bfe6675e724f7fbeaaeacce5a9f9b8" title="flag for destructor">destroynom</a>;
36<a name="l00045"></a><a class="code" href="classbdm_1_1mratio.html#cda5bd23ba60146d69e1f804ff7710c7">00045</a>         <a class="code" href="classbdm_1_1datalink__m2e.html" title="data link between">datalink_m2e</a> <a class="code" href="classbdm_1_1mratio.html#cda5bd23ba60146d69e1f804ff7710c7" title="datalink between conditional and nom">dl</a>;
37<a name="l00046"></a>00046 <span class="keyword">public</span>:
38<a name="l00049"></a><a class="code" href="classbdm_1_1mratio.html#0ff56d13f9515d7e5f23b7a4cc5529b4">00049</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> &amp;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 some dependencies.">mpdf</a> ( ), <a class="code" href="classbdm_1_1mratio.html#cda5bd23ba60146d69e1f804ff7710c7" title="datalink between conditional and nom">dl</a> ( rv,<a class="code" href="classbdm_1_1mpdf.html#5a5f08950daa08b85b01ddf4e1c36288" title="random variable in condition">rvc</a>,nom0-&gt;_rv() ) {
39<a name="l00050"></a>00050                 <a class="code" href="classbdm_1_1mpdf.html#5eea43c56d38e4441bfb30270db949c0" title="pointer to internal epdf">ep</a>-&gt;<a class="code" href="classbdm_1_1epdf.html#f423e28448dbb69ef4905295ec8de8ff" title="Name its rv.">set_rv</a>(_rv());
40<a name="l00051"></a>00051                 set_rvc(nom0-&gt;<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 ) );
41<a name="l00052"></a>00052                 <span class="keywordflow">if</span> ( copy ) {
42<a name="l00053"></a>00053 <span class="comment">//                      nom = nom0-&gt;_copy_();</span>
43<a name="l00054"></a>00054                         it_error ( <span class="stringliteral">"todo"</span> );
44<a name="l00055"></a>00055                         <a class="code" href="classbdm_1_1mratio.html#51bfe6675e724f7fbeaaeacce5a9f9b8" title="flag for destructor">destroynom</a>=<span class="keyword">true</span>;
45<a name="l00056"></a>00056                 }
46<a name="l00057"></a>00057                 <span class="keywordflow">else</span> {
47<a name="l00058"></a>00058                         <a class="code" href="classbdm_1_1mratio.html#f31caba90a2aa10fbf7631832404fe54" title="Nominator in the form of mpdf.">nom</a> = nom0;
48<a name="l00059"></a>00059                         <a class="code" href="classbdm_1_1mratio.html#51bfe6675e724f7fbeaaeacce5a9f9b8" title="flag for destructor">destroynom</a> = <span class="keyword">false</span>;
49<a name="l00060"></a>00060                 }
50<a name="l00061"></a>00061                 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>() &gt;0,<span class="stringliteral">"Makes no sense to use this object!"</span> );
51<a name="l00062"></a>00062                 <a class="code" href="classbdm_1_1mratio.html#7daa5d02d3a3be9d15fd4156d886ed88" 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>-&gt;<a class="code" href="classbdm_1_1epdf.html#3fb2ece54f720b62ad325e61214fa0a1" 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> );
52<a name="l00063"></a>00063         };
53<a name="l00064"></a><a class="code" href="classbdm_1_1mratio.html#3a2cbce8c61ca9f592d9c2220f7c1204">00064</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 &amp;val, <span class="keyword">const</span> vec &amp;cond ) {
54<a name="l00065"></a>00065                 <span class="keywordtype">double</span> tmp;
55<a name="l00066"></a>00066                 vec nom_val ( <a class="code" href="classbdm_1_1mpdf.html#5eea43c56d38e4441bfb30270db949c0" title="pointer to internal epdf">ep</a>-&gt;<a class="code" href="classbdm_1_1epdf.html#46dfe100cd621716ee5c7ee25a20f24b" title="Size of the random variable.">dimension</a>() + <a class="code" href="classbdm_1_1mpdf.html#7c1900976ff13dbc09c9729b3bbff9e6" title="dimension of the condition">dimc</a> );
56<a name="l00067"></a>00067                 <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">pushup_cond</a> ( nom_val,val,cond );
57<a name="l00068"></a>00068                 tmp = exp ( <a class="code" href="classbdm_1_1mratio.html#f31caba90a2aa10fbf7631832404fe54" title="Nominator in the form of mpdf.">nom</a>-&gt;<a class="code" href="classbdm_1_1epdf.html#a8e39e2ff5e5cf5471bc159530d3b2d3" title="Compute log-probability of argument val.">evallog</a> ( nom_val ) - <a class="code" href="classbdm_1_1mratio.html#7daa5d02d3a3be9d15fd4156d886ed88" title="Denominator in the form of epdf.">den</a>-&gt;<a class="code" href="classbdm_1_1epdf.html#a8e39e2ff5e5cf5471bc159530d3b2d3" title="Compute log-probability of argument val.">evallog</a> ( cond ) );
58<a name="l00069"></a>00069                 it_assert_debug(std::isfinite(tmp),<span class="stringliteral">"Infinite value"</span>);
59<a name="l00070"></a>00070                 <span class="keywordflow">return</span> tmp;
60<a name="l00071"></a>00071         }
61<a name="l00073"></a><a class="code" href="classbdm_1_1mratio.html#c8b39fea586d4258bb3c881406edaf15">00073</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>() {<a class="code" href="classbdm_1_1mratio.html#51bfe6675e724f7fbeaaeacce5a9f9b8" title="flag for destructor">destroynom</a>=<span class="keyword">true</span>;}
62<a name="l00075"></a><a class="code" href="classbdm_1_1mratio.html#c0cc0b25dbdc54751466616655454c5c">00075</a>         <a class="code" href="classbdm_1_1mratio.html#c0cc0b25dbdc54751466616655454c5c" title="Default destructor.">~mratio</a>() {<span class="keyword">delete</span> <a class="code" href="classbdm_1_1mratio.html#7daa5d02d3a3be9d15fd4156d886ed88" title="Denominator in the form of epdf.">den</a>; <span class="keywordflow">if</span> ( <a class="code" href="classbdm_1_1mratio.html#51bfe6675e724f7fbeaaeacce5a9f9b8" title="flag for destructor">destroynom</a> ) {<span class="keyword">delete</span> <a class="code" href="classbdm_1_1mratio.html#f31caba90a2aa10fbf7631832404fe54" title="Nominator in the form of mpdf.">nom</a>;}}
63<a name="l00076"></a>00076 };
64<a name="l00077"></a>00077
65<a name="l00088"></a><a class="code" href="classbdm_1_1emix.html">00088</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> {
66<a name="l00089"></a>00089 <span class="keyword">protected</span>:
67<a name="l00091"></a><a class="code" href="classbdm_1_1emix.html#bb7270345c76da627cd77ddf020bcf46">00091</a>         vec <a class="code" href="classbdm_1_1emix.html#bb7270345c76da627cd77ddf020bcf46" title="weights of the components">w</a>;
68<a name="l00093"></a><a class="code" href="classbdm_1_1emix.html#e2966a6a44b250e22e55bc9fb6af5c3e">00093</a>         Array&lt;epdf*&gt; <a class="code" href="classbdm_1_1emix.html#e2966a6a44b250e22e55bc9fb6af5c3e" title="Component (epdfs).">Coms</a>;
69<a name="l00095"></a><a class="code" href="classbdm_1_1emix.html#47189df41a4616c2fed5972f015743f4">00095</a>         <span class="keywordtype">bool</span> <a class="code" href="classbdm_1_1emix.html#47189df41a4616c2fed5972f015743f4" title="Flag if owning Coms.">destroyComs</a>;
70<a name="l00096"></a>00096 <span class="keyword">public</span>:
71<a name="l00098"></a><a class="code" href="classbdm_1_1emix.html#4838f3a376ee0bd3c658bfb8f4ea4a3d">00098</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> ( ) {};
72<a name="l00101"></a>00101         <span class="keywordtype">void</span> <a class="code" href="classbdm_1_1emix.html#d8c1aefba8302759836b5f26999ce840">set_parameters</a> ( <span class="keyword">const</span> vec &amp;<a class="code" href="classbdm_1_1emix.html#bb7270345c76da627cd77ddf020bcf46" title="weights of the components">w</a>, <span class="keyword">const</span> Array&lt;epdf*&gt; &amp;<a class="code" href="classbdm_1_1emix.html#e2966a6a44b250e22e55bc9fb6af5c3e" title="Component (epdfs).">Coms</a>, <span class="keywordtype">bool</span> copy=<span class="keyword">true</span> );
73<a name="l00102"></a>00102
74<a name="l00103"></a>00103         vec <a class="code" href="classbdm_1_1emix.html#e8839dbbb0d1276a8dbe957a67cfe0dc" title="Returns a sample,  from density .">sample</a>() <span class="keyword">const</span>;
75<a name="l00104"></a><a class="code" href="classbdm_1_1emix.html#a3a5390bc56e81ef3b0debc0f185fa8a">00104</a>         vec <a class="code" href="classbdm_1_1emix.html#a3a5390bc56e81ef3b0debc0f185fa8a" title="return expected value">mean</a>()<span class="keyword"> const </span>{
76<a name="l00105"></a>00105                 <span class="keywordtype">int</span> i; vec mu = zeros ( <a class="code" href="classbdm_1_1epdf.html#16adac20ec7fe07e1ea0b27d917788ce" title="dimension of the random variable">dim</a>);
77<a name="l00106"></a>00106                 <span class="keywordflow">for</span> ( i = 0;i &lt; <a class="code" href="classbdm_1_1emix.html#bb7270345c76da627cd77ddf020bcf46" title="weights of the components">w</a>.length();i++ ) {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#e2966a6a44b250e22e55bc9fb6af5c3e" title="Component (epdfs).">Coms</a> ( i )-&gt;mean(); }
78<a name="l00107"></a>00107                 <span class="keywordflow">return</span> mu;
79<a name="l00108"></a>00108         }
80<a name="l00109"></a><a class="code" href="classbdm_1_1emix.html#e9a627023cdf90c9ffd8eef726595c86">00109</a>         vec <a class="code" href="classbdm_1_1emix.html#e9a627023cdf90c9ffd8eef726595c86" title="return expected variance (not covariance!)">variance</a>()<span class="keyword"> const </span>{
81<a name="l00110"></a>00110                 <span class="comment">//non-central moment</span>
82<a name="l00111"></a>00111                 vec mom2 = zeros(<a class="code" href="classbdm_1_1epdf.html#16adac20ec7fe07e1ea0b27d917788ce" title="dimension of the random variable">dim</a>);
83<a name="l00112"></a>00112                 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 0;i &lt; <a class="code" href="classbdm_1_1emix.html#bb7270345c76da627cd77ddf020bcf46" title="weights of the components">w</a>.length();i++ ) {mom2 += <a class="code" href="classbdm_1_1emix.html#bb7270345c76da627cd77ddf020bcf46" title="weights of the components">w</a> ( i ) * pow(<a class="code" href="classbdm_1_1emix.html#e2966a6a44b250e22e55bc9fb6af5c3e" title="Component (epdfs).">Coms</a> ( i )-&gt;<a class="code" href="classbdm_1_1emix.html#a3a5390bc56e81ef3b0debc0f185fa8a" title="return expected value">mean</a>(),2); }
84<a name="l00113"></a>00113                 <span class="comment">//central moment</span>
85<a name="l00114"></a>00114                 <span class="keywordflow">return</span> mom2-pow(<a class="code" href="classbdm_1_1emix.html#a3a5390bc56e81ef3b0debc0f185fa8a" title="return expected value">mean</a>(),2);
86<a name="l00115"></a>00115         }
87<a name="l00116"></a><a class="code" href="classbdm_1_1emix.html#0f3db99f730bde6b7953931594537e8e">00116</a>         <span class="keywordtype">double</span> <a class="code" href="classbdm_1_1emix.html#0f3db99f730bde6b7953931594537e8e" title="Compute log-probability of argument val.">evallog</a> ( <span class="keyword">const</span> vec &amp;val )<span class="keyword"> const </span>{
88<a name="l00117"></a>00117                 <span class="keywordtype">int</span> i;
89<a name="l00118"></a>00118                 <span class="keywordtype">double</span> sum = 0.0;
90<a name="l00119"></a>00119                 <span class="keywordflow">for</span> ( i = 0;i &lt; <a class="code" href="classbdm_1_1emix.html#bb7270345c76da627cd77ddf020bcf46" title="weights of the components">w</a>.length();i++ ) {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#e2966a6a44b250e22e55bc9fb6af5c3e" title="Component (epdfs).">Coms</a> ( i )-&gt;<a class="code" href="classbdm_1_1emix.html#0f3db99f730bde6b7953931594537e8e" title="Compute log-probability of argument val.">evallog</a> ( val ) );}
91<a name="l00120"></a>00120                 <span class="keywordflow">if</span> (sum==0.0){sum=std::numeric_limits&lt;double&gt;::epsilon();}
92<a name="l00121"></a>00121                 <span class="keywordtype">double</span> tmp=log ( sum );
93<a name="l00122"></a>00122                 it_assert_debug(std::isfinite(tmp),<span class="stringliteral">"Infinite"</span>);
94<a name="l00123"></a>00123                 <span class="keywordflow">return</span> tmp;
95<a name="l00124"></a>00124         };
96<a name="l00125"></a><a class="code" href="classbdm_1_1emix.html#23af1986e2afcbc8c7e1c30f610e703b">00125</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 &amp;Val )<span class="keyword"> const </span>{
97<a name="l00126"></a>00126                 vec x=zeros ( Val.cols() );
98<a name="l00127"></a>00127                 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 0; i &lt; <a class="code" href="classbdm_1_1emix.html#bb7270345c76da627cd77ddf020bcf46" title="weights of the components">w</a>.length(); i++ ) {
99<a name="l00128"></a>00128                         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#e2966a6a44b250e22e55bc9fb6af5c3e" title="Component (epdfs).">Coms</a> ( i )-&gt;<a class="code" href="classbdm_1_1emix.html#23af1986e2afcbc8c7e1c30f610e703b" title="Compute log-probability of multiple values argument val.">evallog_m</a> ( Val ) );
100<a name="l00129"></a>00129                 }
101<a name="l00130"></a>00130                 <span class="keywordflow">return</span> log ( x );
102<a name="l00131"></a>00131         };
103<a name="l00133"></a><a class="code" href="classbdm_1_1emix.html#e64c1d5a73f541e469792e23d4677af2">00133</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 &amp;Val )<span class="keyword"> const </span>{
104<a name="l00134"></a>00134                 mat X ( <a class="code" href="classbdm_1_1emix.html#bb7270345c76da627cd77ddf020bcf46" title="weights of the components">w</a>.length(), Val.cols() );
105<a name="l00135"></a>00135                 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 0; i &lt; <a class="code" href="classbdm_1_1emix.html#bb7270345c76da627cd77ddf020bcf46" title="weights of the components">w</a>.length(); i++ ) {
106<a name="l00136"></a>00136                         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#e2966a6a44b250e22e55bc9fb6af5c3e" title="Component (epdfs).">Coms</a> ( i )-&gt;<a class="code" href="classbdm_1_1emix.html#23af1986e2afcbc8c7e1c30f610e703b" title="Compute log-probability of multiple values argument val.">evallog_m</a> ( Val ) ) );
107<a name="l00137"></a>00137                 }
108<a name="l00138"></a>00138                 <span class="keywordflow">return</span> X;
109<a name="l00139"></a>00139         };
110<a name="l00140"></a>00140
111<a name="l00141"></a>00141         <a class="code" href="classbdm_1_1emix.html" title="Mixture of epdfs.">emix</a>* <a class="code" href="classbdm_1_1emix.html#f7165371cc4f7be9292024b9f5431646" 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> &amp;<a class="code" href="classbdm_1_1epdf.html#62c5b8ff71d9ebe6cd58d3c342eb1dc8" title="Description of the random variable.">rv</a> ) <span class="keyword">const</span>;
112<a name="l00142"></a>00142         <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>* <a class="code" href="classbdm_1_1emix.html#fc7772a2972959cf19ba26882feacecf" 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> &amp;<a class="code" href="classbdm_1_1epdf.html#62c5b8ff71d9ebe6cd58d3c342eb1dc8" title="Description of the random variable.">rv</a> ) <span class="keyword">const</span>; <span class="comment">//why not mratio!!</span>
113<a name="l00143"></a>00143
114<a name="l00144"></a>00144 <span class="comment">//Access methods</span>
115<a name="l00146"></a><a class="code" href="classbdm_1_1emix.html#d9b584cb5b2471a4250fb127757f28be">00146</a> <span class="comment"></span>        vec&amp; <a class="code" href="classbdm_1_1emix.html#d9b584cb5b2471a4250fb127757f28be" title="returns a pointer to the internal mean value. Use with Care!">_w</a>() {<span class="keywordflow">return</span> <a class="code" href="classbdm_1_1emix.html#bb7270345c76da627cd77ddf020bcf46" title="weights of the components">w</a>;}
116<a name="l00147"></a>00147         <span class="keyword">virtual</span> ~<a class="code" href="classbdm_1_1emix.html" title="Mixture of epdfs.">emix</a>() {<span class="keywordflow">if</span> ( <a class="code" href="classbdm_1_1emix.html#47189df41a4616c2fed5972f015743f4" title="Flag if owning Coms.">destroyComs</a> ) {<span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i=0;i&lt;<a class="code" href="classbdm_1_1emix.html#e2966a6a44b250e22e55bc9fb6af5c3e" title="Component (epdfs).">Coms</a>.length();i++ ) {<span class="keyword">delete</span> <a class="code" href="classbdm_1_1emix.html#e2966a6a44b250e22e55bc9fb6af5c3e" title="Component (epdfs).">Coms</a> ( i );}}}
117<a name="l00149"></a><a class="code" href="classbdm_1_1emix.html#965fb16669250a3d28bc62cf76276d8e">00149</a>         <span class="keywordtype">void</span> <a class="code" href="classbdm_1_1emix.html#965fb16669250a3d28bc62cf76276d8e" title="Auxiliary function for taking ownership of the Coms().">ownComs</a>() {<a class="code" href="classbdm_1_1emix.html#47189df41a4616c2fed5972f015743f4" title="Flag if owning Coms.">destroyComs</a>=<span class="keyword">true</span>;}
118<a name="l00150"></a>00150
119<a name="l00152"></a><a class="code" href="classbdm_1_1emix.html#578616445243674438257be99ba71612">00152</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_1emix.html#578616445243674438257be99ba71612" title="access function">_Coms</a> ( <span class="keywordtype">int</span> i ) {<span class="keywordflow">return</span> <a class="code" href="classbdm_1_1emix.html#e2966a6a44b250e22e55bc9fb6af5c3e" title="Component (epdfs).">Coms</a> ( i );}
120<a name="l00153"></a>00153 };
121<a name="l00154"></a>00154
122<a name="l00163"></a><a class="code" href="classbdm_1_1mprod.html">00163</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_1compositepdf.html" title="Abstract composition of pdfs, will be used for specific classes this abstract class...">compositepdf</a>, <span class="keyword">public</span> <a class="code" href="classbdm_1_1mpdf.html" title="Conditional probability density, e.g. modeling some dependencies.">mpdf</a> {
123<a name="l00164"></a>00164 <span class="keyword">protected</span>:
124<a name="l00166"></a><a class="code" href="classbdm_1_1mprod.html#eca722ed1b219727c6c0f8cbc6bf1e51">00166</a>         Array&lt;epdf*&gt; <a class="code" href="classbdm_1_1mprod.html#eca722ed1b219727c6c0f8cbc6bf1e51" title="pointers to epdfs - shortcut to mpdfs()._epdf()">epdfs</a>;
125<a name="l00168"></a><a class="code" href="classbdm_1_1mprod.html#acf679b3b1d48629c5a042d9ac0d973f">00168</a>         Array&lt;datalink_m2m*&gt; <a class="code" href="classbdm_1_1mprod.html#acf679b3b1d48629c5a042d9ac0d973f" title="Data link for each mpdfs.">dls</a>;
126<a name="l00169"></a>00169 <span class="keyword">public</span>:
127<a name="l00172"></a><a class="code" href="classbdm_1_1mprod.html#680c3e2d95b116c7cfb227c7f2984525">00172</a>         <a class="code" href="classbdm_1_1mprod.html#680c3e2d95b116c7cfb227c7f2984525" title="Constructor from list of mFacs,.">mprod</a> ( Array&lt;mpdf*&gt; mFacs ) : <a class="code" href="classbdm_1_1compositepdf.html" title="Abstract composition of pdfs, will be used for specific classes this abstract class...">compositepdf</a> ( mFacs ), <a class="code" href="classbdm_1_1mpdf.html" title="Conditional probability density, e.g. modeling some dependencies.">mpdf</a> (), <a class="code" href="classbdm_1_1mprod.html#eca722ed1b219727c6c0f8cbc6bf1e51" title="pointers to epdfs - shortcut to mpdfs()._epdf()">epdfs</a> ( <a class="code" href="classbdm_1_1compositepdf.html#7ca3cd8ed92a7154f5b9ff13b1e9d52a" title="Number of mpdfs in the composite.">n</a> ), <a class="code" href="classbdm_1_1mprod.html#acf679b3b1d48629c5a042d9ac0d973f" title="Data link for each mpdfs.">dls</a> ( <a class="code" href="classbdm_1_1compositepdf.html#7ca3cd8ed92a7154f5b9ff13b1e9d52a" title="Number of mpdfs in the composite.">n</a> ) {
128<a name="l00173"></a>00173 <span class="comment">//              setrvc ( ep-&gt;_rv(),_rvc() );</span>
129<a name="l00174"></a>00174                 <span class="comment">// rv and rvc established = &gt; we can link them with mpdfs</span>
130<a name="l00175"></a>00175                 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 0;i &lt; <a class="code" href="classbdm_1_1compositepdf.html#7ca3cd8ed92a7154f5b9ff13b1e9d52a" title="Number of mpdfs in the composite.">n</a>;i++ ) {
131<a name="l00176"></a>00176                         <a class="code" href="classbdm_1_1mprod.html#acf679b3b1d48629c5a042d9ac0d973f" title="Data link for each mpdfs.">dls</a> ( i ) = <span class="keyword">new</span> <a class="code" href="classbdm_1_1datalink__m2m.html">datalink_m2m</a> ( <a class="code" href="classbdm_1_1compositepdf.html#23faf2debc4dde10836393b8c665914a" title="Elements of composition.">mpdfs</a> ( i )-&gt;_rv(), <a class="code" href="classbdm_1_1compositepdf.html#23faf2debc4dde10836393b8c665914a" title="Elements of composition.">mpdfs</a> ( i )-&gt;_rvc(), _rv(), _rvc() );
132<a name="l00177"></a>00177                 }
133<a name="l00178"></a>00178
134<a name="l00179"></a>00179                 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i=0;i&lt;n;i++ ) {
135<a name="l00180"></a>00180                         <a class="code" href="classbdm_1_1mprod.html#eca722ed1b219727c6c0f8cbc6bf1e51" title="pointers to epdfs - shortcut to mpdfs()._epdf()">epdfs</a> ( i ) =&amp; ( <a class="code" href="classbdm_1_1compositepdf.html#23faf2debc4dde10836393b8c665914a" title="Elements of composition.">mpdfs</a> ( i )-&gt;_epdf() );
136<a name="l00181"></a>00181                 }
137<a name="l00182"></a>00182         };
138<a name="l00183"></a>00183
139<a name="l00184"></a><a class="code" href="classbdm_1_1mprod.html#800f21d94c919137608a2fd5c88719e2">00184</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 &amp;val, <span class="keyword">const</span> vec &amp;cond ) {
140<a name="l00185"></a>00185                 <span class="keywordtype">int</span> i;
141<a name="l00186"></a>00186                 <span class="keywordtype">double</span> res = 1.0;
142<a name="l00187"></a>00187                 <span class="keywordflow">for</span> ( i = <a class="code" href="classbdm_1_1compositepdf.html#7ca3cd8ed92a7154f5b9ff13b1e9d52a" title="Number of mpdfs in the composite.">n</a> - 1;i &gt;= 0;i-- ) {
143<a name="l00188"></a>00188                         <span class="comment">/*                      if ( mpdfs(i)-&gt;_rvc().count() &gt;0) {</span>
144<a name="l00189"></a>00189 <span class="comment">                                                        mpdfs ( i )-&gt;condition ( dls ( i )-&gt;get_cond ( val,cond ) );</span>
145<a name="l00190"></a>00190 <span class="comment">                                                }</span>
146<a name="l00191"></a>00191 <span class="comment">                                                // add logarithms</span>
147<a name="l00192"></a>00192 <span class="comment">                                                res += epdfs ( i )-&gt;evallog ( dls ( i )-&gt;pushdown ( val ) );*/</span>
148<a name="l00193"></a>00193                         res *= <a class="code" href="classbdm_1_1compositepdf.html#23faf2debc4dde10836393b8c665914a" title="Elements of composition.">mpdfs</a> ( i )-&gt;evallogcond (
149<a name="l00194"></a>00194                                    <a class="code" href="classbdm_1_1mprod.html#acf679b3b1d48629c5a042d9ac0d973f" title="Data link for each mpdfs.">dls</a> ( i )-&gt;pushdown ( val ),
150<a name="l00195"></a>00195                                    <a class="code" href="classbdm_1_1mprod.html#acf679b3b1d48629c5a042d9ac0d973f" title="Data link for each mpdfs.">dls</a> ( i )-&gt;get_cond ( val, cond )
151<a name="l00196"></a>00196                                );
152<a name="l00197"></a>00197                 }
153<a name="l00198"></a>00198                 <span class="keywordflow">return</span> res;
154<a name="l00199"></a>00199         }
155<a name="l00200"></a><a class="code" href="classbdm_1_1mprod.html#1a37c2aaba8bde7fce5351c39b6e1168">00200</a>         vec <a class="code" href="classbdm_1_1mprod.html#1a37c2aaba8bde7fce5351c39b6e1168">samplecond</a> ( <span class="keyword">const</span> vec &amp;cond, <span class="keywordtype">double</span> &amp;ll ) {
156<a name="l00202"></a>00202                 vec smp= std::numeric_limits&lt;double&gt;::infinity() * ones ( <a class="code" href="classbdm_1_1mpdf.html#5eea43c56d38e4441bfb30270db949c0" title="pointer to internal epdf">ep</a>-&gt;<a class="code" href="classbdm_1_1epdf.html#46dfe100cd621716ee5c7ee25a20f24b" title="Size of the random variable.">dimension</a>() );
157<a name="l00203"></a>00203                 vec smpi;
158<a name="l00204"></a>00204                 ll = 0;
159<a name="l00205"></a>00205                 <span class="comment">// Hard assumption here!!! We are going backwards, to assure that samples that are needed from smp are already generated!</span>
160<a name="l00206"></a>00206                 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = ( <a class="code" href="classbdm_1_1compositepdf.html#7ca3cd8ed92a7154f5b9ff13b1e9d52a" title="Number of mpdfs in the composite.">n</a> - 1 );i &gt;= 0;i-- ) {
161<a name="l00207"></a>00207                         <span class="keywordflow">if</span> ( <a class="code" href="classbdm_1_1compositepdf.html#23faf2debc4dde10836393b8c665914a" title="Elements of composition.">mpdfs</a> ( i )-&gt;dimensionc() ) {
162<a name="l00208"></a>00208                                 <a class="code" href="classbdm_1_1compositepdf.html#23faf2debc4dde10836393b8c665914a" title="Elements of composition.">mpdfs</a> ( i )-&gt;condition ( <a class="code" href="classbdm_1_1mprod.html#acf679b3b1d48629c5a042d9ac0d973f" title="Data link for each mpdfs.">dls</a> ( i )-&gt;get_cond ( smp ,cond ) ); <span class="comment">// smp is val here!!</span>
163<a name="l00209"></a>00209                         }
164<a name="l00210"></a>00210                         smpi = <a class="code" href="classbdm_1_1mprod.html#eca722ed1b219727c6c0f8cbc6bf1e51" title="pointers to epdfs - shortcut to mpdfs()._epdf()">epdfs</a> ( i )-&gt;sample();
165<a name="l00211"></a>00211                         <span class="comment">// copy contribution of this pdf into smp</span>
166<a name="l00212"></a>00212                         <a class="code" href="classbdm_1_1mprod.html#acf679b3b1d48629c5a042d9ac0d973f" title="Data link for each mpdfs.">dls</a> ( i )-&gt;pushup ( smp, smpi );
167<a name="l00213"></a>00213                         <span class="comment">// add ith likelihood contribution</span>
168<a name="l00214"></a>00214                         ll+=<a class="code" href="classbdm_1_1mprod.html#eca722ed1b219727c6c0f8cbc6bf1e51" title="pointers to epdfs - shortcut to mpdfs()._epdf()">epdfs</a> ( i )-&gt;evallog ( smpi );
169<a name="l00215"></a>00215                 }
170<a name="l00216"></a>00216                 <span class="keywordflow">return</span> smp;
171<a name="l00217"></a>00217         }
172<a name="l00218"></a>00218         mat <a class="code" href="classbdm_1_1mprod.html#1a37c2aaba8bde7fce5351c39b6e1168">samplecond</a> ( <span class="keyword">const</span> vec &amp;cond, vec &amp;ll, <span class="keywordtype">int</span> N ) {
173<a name="l00219"></a>00219                 mat Smp ( dimension(),N );
174<a name="l00220"></a>00220                 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i=0;i&lt;N;i++ ) {Smp.set_col ( i,<a class="code" href="classbdm_1_1mprod.html#1a37c2aaba8bde7fce5351c39b6e1168">samplecond</a> ( cond,ll ( i ) ) );}
175<a name="l00221"></a>00221                 <span class="keywordflow">return</span> Smp;
176<a name="l00222"></a>00222         }
177<a name="l00223"></a>00223
178<a name="l00224"></a>00224         ~<a class="code" href="classbdm_1_1mprod.html#680c3e2d95b116c7cfb227c7f2984525" title="Constructor from list of mFacs,.">mprod</a>() {};
179<a name="l00225"></a>00225 };
180<a name="l00226"></a>00226
181<a name="l00228"></a><a class="code" href="classbdm_1_1eprod.html">00228</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> {
182<a name="l00229"></a>00229 <span class="keyword">protected</span>:
183<a name="l00231"></a><a class="code" href="classbdm_1_1eprod.html#fa0b0981730f0a8339b9ff3e29d78391">00231</a>         Array&lt;const epdf*&gt; <a class="code" href="classbdm_1_1eprod.html#fa0b0981730f0a8339b9ff3e29d78391" title="Components (epdfs).">epdfs</a>;
184<a name="l00233"></a><a class="code" href="classbdm_1_1eprod.html#6b5a9be71a644f6009e7beda6c762a43">00233</a>         Array&lt;datalink*&gt; <a class="code" href="classbdm_1_1eprod.html#6b5a9be71a644f6009e7beda6c762a43" title="Array of indeces.">dls</a>;
185<a name="l00234"></a>00234 <span class="keyword">public</span>:
186<a name="l00235"></a>00235         <a class="code" href="classbdm_1_1eprod.html" title="Product of independent epdfs. For dependent pdfs, use mprod.">eprod</a> ( <span class="keyword">const</span> Array&lt;const epdf*&gt; epdfs0 ) : <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#fa0b0981730f0a8339b9ff3e29d78391" title="Components (epdfs).">epdfs</a> ( epdfs0 ),<a class="code" href="classbdm_1_1eprod.html#6b5a9be71a644f6009e7beda6c762a43" title="Array of indeces.">dls</a> ( <a class="code" href="classbdm_1_1eprod.html#fa0b0981730f0a8339b9ff3e29d78391" title="Components (epdfs).">epdfs</a>.length() ) {
187<a name="l00236"></a>00236                 <span class="keywordtype">bool</span> independent=<span class="keyword">true</span>;
188<a name="l00237"></a>00237                 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i=0;i&lt;<a class="code" href="classbdm_1_1eprod.html#fa0b0981730f0a8339b9ff3e29d78391" title="Components (epdfs).">epdfs</a>.length();i++ ) {
189<a name="l00238"></a>00238                         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 )-&gt;<a class="code" href="classbdm_1_1epdf.html#a4ab378d5e004c3ff3e2d4e64f7bba21" title="Return name (fails when isnamed is false).">_rv</a>() );
190<a name="l00239"></a>00239                         it_assert_debug ( independent==<span class="keyword">true</span>, <span class="stringliteral">"eprod:: given components are not independent ."</span> );
191<a name="l00240"></a>00240                 }
192<a name="l00241"></a>00241                 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i=0;i&lt;<a class="code" href="classbdm_1_1eprod.html#fa0b0981730f0a8339b9ff3e29d78391" title="Components (epdfs).">epdfs</a>.length();i++ ) {
193<a name="l00242"></a>00242                         <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> ( <a class="code" href="classbdm_1_1eprod.html#fa0b0981730f0a8339b9ff3e29d78391" title="Components (epdfs).">epdfs</a> ( i )-&gt;<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> );
194<a name="l00243"></a>00243                 }
195<a name="l00244"></a>00244         }
196<a name="l00245"></a>00245
197<a name="l00246"></a><a class="code" href="classbdm_1_1eprod.html#1d494351e7e385ad3382387c96915d24">00246</a>         vec <a class="code" href="classbdm_1_1eprod.html#1d494351e7e385ad3382387c96915d24" title="return expected value">mean</a>()<span class="keyword"> const </span>{
198<a name="l00247"></a>00247                 vec tmp ( <a class="code" href="classbdm_1_1epdf.html#16adac20ec7fe07e1ea0b27d917788ce" title="dimension of the random variable">dim</a> );
199<a name="l00248"></a>00248                 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i=0;i&lt;<a class="code" href="classbdm_1_1eprod.html#fa0b0981730f0a8339b9ff3e29d78391" title="Components (epdfs).">epdfs</a>.length();i++ ) {
200<a name="l00249"></a>00249                         vec pom = <a class="code" href="classbdm_1_1eprod.html#fa0b0981730f0a8339b9ff3e29d78391" title="Components (epdfs).">epdfs</a> ( i )-&gt;mean();
201<a name="l00250"></a>00250                         <a class="code" href="classbdm_1_1eprod.html#6b5a9be71a644f6009e7beda6c762a43" title="Array of indeces.">dls</a> ( i )-&gt;pushup ( tmp, pom );
202<a name="l00251"></a>00251                 }
203<a name="l00252"></a>00252                 <span class="keywordflow">return</span> tmp;
204<a name="l00253"></a>00253         }
205<a name="l00254"></a><a class="code" href="classbdm_1_1eprod.html#cc53a151f5ac5dfba68d425acc3a5615">00254</a>         vec <a class="code" href="classbdm_1_1eprod.html#cc53a151f5ac5dfba68d425acc3a5615" title="return expected variance (not covariance!)">variance</a>()<span class="keyword"> const </span>{
206<a name="l00255"></a>00255                 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>
207<a name="l00256"></a>00256                 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i=0;i&lt;<a class="code" href="classbdm_1_1eprod.html#fa0b0981730f0a8339b9ff3e29d78391" title="Components (epdfs).">epdfs</a>.length();i++ ) {
208<a name="l00257"></a>00257                         vec pom = <a class="code" href="classbdm_1_1eprod.html#fa0b0981730f0a8339b9ff3e29d78391" title="Components (epdfs).">epdfs</a> ( i )-&gt;mean();
209<a name="l00258"></a>00258                         <a class="code" href="classbdm_1_1eprod.html#6b5a9be71a644f6009e7beda6c762a43" title="Array of indeces.">dls</a> ( i )-&gt;pushup ( tmp, pow(pom,2) );
210<a name="l00259"></a>00259                 }
211<a name="l00260"></a>00260                 <span class="keywordflow">return</span> tmp-pow(<a class="code" href="classbdm_1_1eprod.html#1d494351e7e385ad3382387c96915d24" title="return expected value">mean</a>(),2);
212<a name="l00261"></a>00261         }
213<a name="l00262"></a><a class="code" href="classbdm_1_1eprod.html#af48debea25d3473bcb71b6a77fac741">00262</a>         vec <a class="code" href="classbdm_1_1eprod.html#af48debea25d3473bcb71b6a77fac741" title="Returns a sample,  from density .">sample</a>()<span class="keyword"> const </span>{
214<a name="l00263"></a>00263                 vec tmp ( <a class="code" href="classbdm_1_1epdf.html#16adac20ec7fe07e1ea0b27d917788ce" title="dimension of the random variable">dim</a> );
215<a name="l00264"></a>00264                 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i=0;i&lt;<a class="code" href="classbdm_1_1eprod.html#fa0b0981730f0a8339b9ff3e29d78391" title="Components (epdfs).">epdfs</a>.length();i++ ) {
216<a name="l00265"></a>00265                         vec pom = <a class="code" href="classbdm_1_1eprod.html#fa0b0981730f0a8339b9ff3e29d78391" title="Components (epdfs).">epdfs</a> ( i )-&gt;sample();
217<a name="l00266"></a>00266                         <a class="code" href="classbdm_1_1eprod.html#6b5a9be71a644f6009e7beda6c762a43" title="Array of indeces.">dls</a> ( i )-&gt;pushup ( tmp, pom );
218<a name="l00267"></a>00267                 }
219<a name="l00268"></a>00268                 <span class="keywordflow">return</span> tmp;
220<a name="l00269"></a>00269         }
221<a name="l00270"></a><a class="code" href="classbdm_1_1eprod.html#a5a91e67d2f74ff2b0b8eecde2fa42e2">00270</a>         <span class="keywordtype">double</span> <a class="code" href="classbdm_1_1eprod.html#a5a91e67d2f74ff2b0b8eecde2fa42e2" title="Compute log-probability of argument val.">evallog</a> ( <span class="keyword">const</span> vec &amp;val )<span class="keyword"> const </span>{
222<a name="l00271"></a>00271                 <span class="keywordtype">double</span> tmp=0;
223<a name="l00272"></a>00272                 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i=0;i&lt;<a class="code" href="classbdm_1_1eprod.html#fa0b0981730f0a8339b9ff3e29d78391" title="Components (epdfs).">epdfs</a>.length();i++ ) {
224<a name="l00273"></a>00273                         tmp+=<a class="code" href="classbdm_1_1eprod.html#fa0b0981730f0a8339b9ff3e29d78391" title="Components (epdfs).">epdfs</a> ( i )-&gt;evallog ( <a class="code" href="classbdm_1_1eprod.html#6b5a9be71a644f6009e7beda6c762a43" title="Array of indeces.">dls</a> ( i )-&gt;pushdown ( val ) );
225<a name="l00274"></a>00274                 }
226<a name="l00275"></a>00275                 it_assert_debug(std::isfinite(tmp),<span class="stringliteral">"Infinite"</span>);
227<a name="l00276"></a>00276                 <span class="keywordflow">return</span> tmp;
228<a name="l00277"></a>00277         }
229<a name="l00279"></a><a class="code" href="classbdm_1_1eprod.html#5194b47dd05a5886e0745250b6704953">00279</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>{it_assert_debug ( i&lt;<a class="code" href="classbdm_1_1eprod.html#fa0b0981730f0a8339b9ff3e29d78391" title="Components (epdfs).">epdfs</a>.length(),<span class="stringliteral">"wrong index"</span> );<span class="keywordflow">return</span> <a class="code" href="classbdm_1_1eprod.html#fa0b0981730f0a8339b9ff3e29d78391" title="Components (epdfs).">epdfs</a> ( i );}
230<a name="l00280"></a>00280
231<a name="l00282"></a><a class="code" href="classbdm_1_1eprod.html#708b37971aab3667f20e325c358632cf">00282</a>         <a class="code" href="classbdm_1_1eprod.html#708b37971aab3667f20e325c358632cf" title="Destructor.">~eprod</a>() {<span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i=0;i&lt;<a class="code" href="classbdm_1_1eprod.html#fa0b0981730f0a8339b9ff3e29d78391" title="Components (epdfs).">epdfs</a>.length();i++ ) {<span class="keyword">delete</span> <a class="code" href="classbdm_1_1eprod.html#6b5a9be71a644f6009e7beda6c762a43" title="Array of indeces.">dls</a> ( i );}}
232<a name="l00283"></a>00283 };
233<a name="l00284"></a>00284
234<a name="l00285"></a>00285
235<a name="l00289"></a><a class="code" href="classbdm_1_1mmix.html">00289</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 type.">mmix</a> : <span class="keyword">public</span> <a class="code" href="classbdm_1_1mpdf.html" title="Conditional probability density, e.g. modeling some dependencies.">mpdf</a> {
236<a name="l00290"></a>00290 <span class="keyword">protected</span>:
237<a name="l00292"></a><a class="code" href="classbdm_1_1mmix.html#52e0bcc70d5b26babeba08097579da9c">00292</a>         Array&lt;mpdf*&gt; <a class="code" href="classbdm_1_1mmix.html#52e0bcc70d5b26babeba08097579da9c" title="Component (epdfs).">Coms</a>;
238<a name="l00294"></a><a class="code" href="classbdm_1_1mmix.html#0c4dd6ca6556ddd8ae3c5f3257c04b60">00294</a>         <a class="code" href="classbdm_1_1emix.html" title="Mixture of epdfs.">emix</a> <a class="code" href="classbdm_1_1mmix.html#0c4dd6ca6556ddd8ae3c5f3257c04b60" title="Internal epdf.">Epdf</a>;
239<a name="l00295"></a>00295 <span class="keyword">public</span>:
240<a name="l00297"></a><a class="code" href="classbdm_1_1mmix.html#a0cf51b7daeb6751103e94e6b96213fb">00297</a>         <a class="code" href="classbdm_1_1mmix.html#a0cf51b7daeb6751103e94e6b96213fb" title="Default constructor.">mmix</a> ( ) : <a class="code" href="classbdm_1_1mpdf.html" title="Conditional probability density, e.g. modeling some dependencies.">mpdf</a> ( ), <a class="code" href="classbdm_1_1mmix.html#0c4dd6ca6556ddd8ae3c5f3257c04b60" title="Internal epdf.">Epdf</a> () {<a class="code" href="classbdm_1_1mpdf.html#5eea43c56d38e4441bfb30270db949c0" title="pointer to internal epdf">ep</a> = &amp;<a class="code" href="classbdm_1_1mmix.html#0c4dd6ca6556ddd8ae3c5f3257c04b60" title="Internal epdf.">Epdf</a>;};
241<a name="l00299"></a><a class="code" href="classbdm_1_1mmix.html#ad8d9df36cb0ca093a29af0eca12da32">00299</a>         <span class="keywordtype">void</span> <a class="code" href="classbdm_1_1mmix.html#ad8d9df36cb0ca093a29af0eca12da32" title="Set weights w and components R.">set_parameters</a> ( <span class="keyword">const</span> vec &amp;w, <span class="keyword">const</span> Array&lt;mpdf*&gt; &amp;<a class="code" href="classbdm_1_1mmix.html#52e0bcc70d5b26babeba08097579da9c" title="Component (epdfs).">Coms</a> ) {
242<a name="l00300"></a>00300                 Array&lt;epdf*&gt; Eps ( Coms.length() );
243<a name="l00301"></a>00301
244<a name="l00302"></a>00302                 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 0;i &lt; Coms.length();i++ ) {
245<a name="l00303"></a>00303                         Eps ( i ) = &amp; ( <a class="code" href="classbdm_1_1mmix.html#52e0bcc70d5b26babeba08097579da9c" title="Component (epdfs).">Coms</a> ( i )-&gt;_epdf() );
246<a name="l00304"></a>00304                 }
247<a name="l00305"></a>00305                 <a class="code" href="classbdm_1_1mmix.html#0c4dd6ca6556ddd8ae3c5f3257c04b60" title="Internal epdf.">Epdf</a>.<a class="code" href="classbdm_1_1emix.html#d8c1aefba8302759836b5f26999ce840">set_parameters</a> ( w, Eps );
248<a name="l00306"></a>00306         };
249<a name="l00307"></a>00307
250<a name="l00308"></a><a class="code" href="classbdm_1_1mmix.html#0a5241ecc9911e816b00b92d5c7c8df0">00308</a>         <span class="keywordtype">void</span> <a class="code" href="classbdm_1_1mmix.html#0a5241ecc9911e816b00b92d5c7c8df0" title="Update ep so that it represents this mpdf conditioned on rvc = cond.">condition</a> ( <span class="keyword">const</span> vec &amp;cond ) {
251<a name="l00309"></a>00309                 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 0;i &lt; <a class="code" href="classbdm_1_1mmix.html#52e0bcc70d5b26babeba08097579da9c" title="Component (epdfs).">Coms</a>.length();i++ ) {<a class="code" href="classbdm_1_1mmix.html#52e0bcc70d5b26babeba08097579da9c" title="Component (epdfs).">Coms</a> ( i )-&gt;condition ( cond );}
252<a name="l00310"></a>00310         };
253<a name="l00311"></a>00311 };
254<a name="l00312"></a>00312
255<a name="l00313"></a>00313 }
256<a name="l00314"></a>00314 <span class="preprocessor">#endif //MX_H</span>
257</pre></div></div>
258<hr size="1"><address style="text-align: right;"><small>Generated on Wed Feb 11 23:33:54 2009 for mixpp by&nbsp;
259<a href="http://www.doxygen.org/index.html">
260<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.6 </small></address>
261</body>
262</html>
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