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| [261] | 19 | <h1>libFN.h</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">//</span> |
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| [23] | 20 | <a name="l00002"></a>00002 <span class="comment">// C++ Interface: itpp_ext</span> |
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| 21 | <a name="l00003"></a>00003 <span class="comment">//</span> |
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| 22 | <a name="l00004"></a>00004 <span class="comment">// Description:</span> |
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| 23 | <a name="l00005"></a>00005 <span class="comment">//</span> |
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| 24 | <a name="l00006"></a>00006 <span class="comment">//</span> |
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| 25 | <a name="l00007"></a>00007 <span class="comment">// Author: smidl <smidl@utia.cas.cz>, (C) 2008</span> |
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| 26 | <a name="l00008"></a>00008 <span class="comment">//</span> |
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| 27 | <a name="l00009"></a>00009 <span class="comment">// Copyright: See COPYING file that comes with this distribution</span> |
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| 28 | <a name="l00010"></a>00010 <span class="comment">//</span> |
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| 29 | <a name="l00011"></a>00011 <span class="comment">//</span> |
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| [33] | 30 | <a name="l00012"></a>00012 <span class="preprocessor">#ifndef FN_H</span> |
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| 31 | <a name="l00013"></a>00013 <span class="preprocessor"></span><span class="preprocessor">#define FN_H</span> |
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| 32 | <a name="l00014"></a>00014 <span class="preprocessor"></span> |
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| [261] | 33 | <a name="l00015"></a>00015 <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> |
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| 34 | <a name="l00016"></a>00016 |
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| 35 | <a name="l00017"></a>00017 <span class="keyword">namespace </span>bdm{ |
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| 36 | <a name="l00018"></a>00018 |
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| 37 | <a name="l00020"></a><a class="code" href="classbdm_1_1constfn.html">00020</a> <span class="keyword">class </span><a class="code" href="classbdm_1_1constfn.html" title="class representing function , here rv is empty">constfn</a> : <span class="keyword">public</span> <a class="code" href="classbdm_1_1fnc.html" title="Class representing function of variable represented by rv.">fnc</a> |
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| 38 | <a name="l00021"></a>00021 { |
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| 39 | <a name="l00023"></a>00023 vec val; |
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| 40 | <a name="l00024"></a>00024 |
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| 41 | <a name="l00025"></a>00025 <span class="keyword">public</span>: |
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| 42 | <a name="l00026"></a>00026 <span class="comment">//vec eval() {return val;};</span> |
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| 43 | <a name="l00028"></a><a class="code" href="classbdm_1_1constfn.html#33c2631ddcad9e81ef4b743d83eed4d4">00028</a> <span class="comment"></span> vec <a class="code" href="classbdm_1_1constfn.html#33c2631ddcad9e81ef4b743d83eed4d4" title="inherited">eval</a> ( <span class="keyword">const</span> vec &cond ) {<span class="keywordflow">return</span> val;}; |
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| [270] | 44 | <a name="l00030"></a><a class="code" href="classbdm_1_1constfn.html#7df0693d3ef4f1d2a52a5a3c3fce44af">00030</a> <a class="code" href="classbdm_1_1constfn.html#7df0693d3ef4f1d2a52a5a3c3fce44af" title="Default constructor.">constfn</a> ( <span class="keyword">const</span> vec &val0 ) :<a class="code" href="classbdm_1_1fnc.html" title="Class representing function of variable represented by rv.">fnc</a>(), val ( val0 ) {<a class="code" href="classbdm_1_1fnc.html#52156cb4a52a62d51fc7455985797a62" title="Length of the output vector.">dimy</a>=val.length();}; |
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| [261] | 45 | <a name="l00031"></a>00031 }; |
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| 46 | <a name="l00032"></a>00032 |
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| 47 | <a name="l00034"></a><a class="code" href="classbdm_1_1linfn.html">00034</a> <span class="keyword">class </span><a class="code" href="classbdm_1_1linfn.html" title="Class representing function .">linfn</a>: <span class="keyword">public</span> <a class="code" href="classbdm_1_1fnc.html" title="Class representing function of variable represented by rv.">fnc</a> |
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| 48 | <a name="l00035"></a>00035 { |
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| 49 | <a name="l00037"></a>00037 <a class="code" href="classbdm_1_1RV.html" title="Class representing variables, most often random variables.">RV</a> rv; |
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| 50 | <a name="l00039"></a>00039 mat A; |
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| 51 | <a name="l00041"></a>00041 vec B; |
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| 52 | <a name="l00042"></a>00042 <span class="keyword">public</span> : |
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| [270] | 53 | <a name="l00043"></a><a class="code" href="classbdm_1_1linfn.html#b8063094a2aa210dcf7ae73e2b85e09c">00043</a> vec <a class="code" href="classbdm_1_1linfn.html#b8063094a2aa210dcf7ae73e2b85e09c" title="function evaluates numerical value of at cond ">eval</a> (<span class="keyword">const</span> vec &cond ) {it_assert_debug ( cond.length() ==rv.count(), <span class="stringliteral">"linfn::eval Wrong cond."</span> );<span class="keywordflow">return</span> A*cond+B;}; |
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| [261] | 54 | <a name="l00044"></a>00044 |
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| 55 | <a name="l00045"></a>00045 <span class="comment">// linfn evalsome ( ivec &rvind );</span> |
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| [270] | 56 | <a name="l00047"></a><a class="code" href="classbdm_1_1linfn.html#b39c494c12863c031eb2acf86c0bc429">00047</a> <span class="comment"></span> <a class="code" href="classbdm_1_1linfn.html#b39c494c12863c031eb2acf86c0bc429" title="default constructor">linfn</a> ( ) : <a class="code" href="classbdm_1_1fnc.html" title="Class representing function of variable represented by rv.">fnc</a>(), A ( ),B () { }; |
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| 57 | <a name="l00049"></a><a class="code" href="classbdm_1_1linfn.html#7e0e714b814532fc3e38daede24c5e68">00049</a> <span class="keywordtype">void</span> <a class="code" href="classbdm_1_1linfn.html#7e0e714b814532fc3e38daede24c5e68" title="Set values of A and B.">set_parameters</a> ( <span class="keyword">const</span> mat &A0 , <span class="keyword">const</span> vec &B0 ) {A=A0; B=B0; <a class="code" href="classbdm_1_1fnc.html#52156cb4a52a62d51fc7455985797a62" title="Length of the output vector.">dimy</a>=A.rows();}; |
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| [261] | 58 | <a name="l00050"></a>00050 }; |
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| 59 | <a name="l00051"></a>00051 |
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| [33] | 60 | <a name="l00052"></a>00052 |
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| [261] | 61 | <a name="l00062"></a><a class="code" href="classbdm_1_1diffbifn.html">00062</a> <span class="keyword">class </span><a class="code" href="classbdm_1_1diffbifn.html" title="Class representing a differentiable function of two variables .">diffbifn</a>: <span class="keyword">public</span> <a class="code" href="classbdm_1_1fnc.html" title="Class representing function of variable represented by rv.">fnc</a> |
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| 62 | <a name="l00063"></a>00063 { |
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| 63 | <a name="l00064"></a>00064 <span class="keyword">protected</span>: |
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| 64 | <a name="l00066"></a><a class="code" href="classbdm_1_1diffbifn.html#5f56547d8e9378b669d3cc19d7831cbb">00066</a> <a class="code" href="classbdm_1_1RV.html" title="Class representing variables, most often random variables.">RV</a> <a class="code" href="classbdm_1_1diffbifn.html#5f56547d8e9378b669d3cc19d7831cbb" title="Indentifier of the first rv.">rvx</a>; |
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| 65 | <a name="l00068"></a><a class="code" href="classbdm_1_1diffbifn.html#a8e3e861d5ec2a7ae9524e6338e58320">00068</a> <a class="code" href="classbdm_1_1RV.html" title="Class representing variables, most often random variables.">RV</a> <a class="code" href="classbdm_1_1diffbifn.html#a8e3e861d5ec2a7ae9524e6338e58320" title="Indentifier of the second rv.">rvu</a>; |
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| 66 | <a name="l00070"></a><a class="code" href="classbdm_1_1diffbifn.html#a193aa2c4a500139c0c4b669691e588e">00070</a> <span class="keywordtype">int</span> <a class="code" href="classbdm_1_1diffbifn.html#a193aa2c4a500139c0c4b669691e588e" title="cache for rvx.count()">dimx</a>; |
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| 67 | <a name="l00072"></a><a class="code" href="classbdm_1_1diffbifn.html#30c45617eec89adeb4ebaa763d093fb0">00072</a> <span class="keywordtype">int</span> <a class="code" href="classbdm_1_1diffbifn.html#30c45617eec89adeb4ebaa763d093fb0" title="cache for rvu.count()">dimu</a>; |
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| 68 | <a name="l00073"></a>00073 <span class="keyword">public</span>: |
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| 69 | <a name="l00075"></a><a class="code" href="classbdm_1_1diffbifn.html#188f31066bd72e1bf0ddacd1eb0e6af3">00075</a> vec <a class="code" href="classbdm_1_1diffbifn.html#188f31066bd72e1bf0ddacd1eb0e6af3" title="Evaluates (VS: Do we really need common eval? ).">eval</a> ( <span class="keyword">const</span> vec &cond ) |
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| 70 | <a name="l00076"></a>00076 { |
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| 71 | <a name="l00077"></a>00077 it_assert_debug ( cond.length() == ( <a class="code" href="classbdm_1_1diffbifn.html#a193aa2c4a500139c0c4b669691e588e" title="cache for rvx.count()">dimx</a>+<a class="code" href="classbdm_1_1diffbifn.html#30c45617eec89adeb4ebaa763d093fb0" title="cache for rvu.count()">dimu</a> ), <span class="stringliteral">"linfn::eval Wrong cond."</span> ); |
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| 72 | <a name="l00078"></a>00078 <span class="keywordflow">return</span> <a class="code" href="classbdm_1_1diffbifn.html#188f31066bd72e1bf0ddacd1eb0e6af3" title="Evaluates (VS: Do we really need common eval? ).">eval</a> ( cond ( 0,<a class="code" href="classbdm_1_1diffbifn.html#a193aa2c4a500139c0c4b669691e588e" title="cache for rvx.count()">dimx</a>-1 ),cond ( <a class="code" href="classbdm_1_1diffbifn.html#a193aa2c4a500139c0c4b669691e588e" title="cache for rvx.count()">dimx</a>,<a class="code" href="classbdm_1_1diffbifn.html#a193aa2c4a500139c0c4b669691e588e" title="cache for rvx.count()">dimx</a>+<a class="code" href="classbdm_1_1diffbifn.html#30c45617eec89adeb4ebaa763d093fb0" title="cache for rvu.count()">dimu</a> ) );<span class="comment">//-1 = end (in matlab)</span> |
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| 73 | <a name="l00079"></a>00079 }; |
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| 74 | <a name="l00080"></a>00080 |
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| 75 | <a name="l00082"></a><a class="code" href="classbdm_1_1diffbifn.html#b5462c05b58cd38367ff946836bb82d3">00082</a> <span class="keyword">virtual</span> vec <a class="code" href="classbdm_1_1diffbifn.html#188f31066bd72e1bf0ddacd1eb0e6af3" title="Evaluates (VS: Do we really need common eval? ).">eval</a> ( <span class="keyword">const</span> vec &x0, <span class="keyword">const</span> vec &u0 ) {<span class="keywordflow">return</span> zeros ( <a class="code" href="classbdm_1_1fnc.html#52156cb4a52a62d51fc7455985797a62" title="Length of the output vector.">dimy</a> );}; |
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| 76 | <a name="l00084"></a><a class="code" href="classbdm_1_1diffbifn.html#651184f808a35f236dbfea21aca1b6ac">00084</a> <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classbdm_1_1diffbifn.html#651184f808a35f236dbfea21aca1b6ac" title="Evaluates and writes result into A .">dfdx_cond</a> ( <span class="keyword">const</span> vec &x0, <span class="keyword">const</span> vec &u0, mat &A , <span class="keywordtype">bool</span> full=<span class="keyword">true</span> ) {}; |
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| 77 | <a name="l00086"></a><a class="code" href="classbdm_1_1diffbifn.html#6ea1dc7a482601b29c5ba36a52d20d07">00086</a> <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classbdm_1_1diffbifn.html#6ea1dc7a482601b29c5ba36a52d20d07" title="Evaluates and writes result into A .">dfdu_cond</a> ( <span class="keyword">const</span> vec &x0, <span class="keyword">const</span> vec &u0, mat &A, <span class="keywordtype">bool</span> full=<span class="keyword">true</span> ) {}; |
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| [270] | 78 | <a name="l00088"></a><a class="code" href="classbdm_1_1diffbifn.html#92ff29d748e445b440453a38d0b09681">00088</a> <a class="code" href="classbdm_1_1diffbifn.html#92ff29d748e445b440453a38d0b09681" title="Default constructor (dimy is not set!).">diffbifn</a> () : <a class="code" href="classbdm_1_1fnc.html" title="Class representing function of variable represented by rv.">fnc</a>() {}; |
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| [261] | 79 | <a name="l00090"></a><a class="code" href="classbdm_1_1diffbifn.html#1b3c8f5949f13d86d2661e191d4b369b">00090</a> <span class="keywordtype">int</span> <a class="code" href="classbdm_1_1diffbifn.html#1b3c8f5949f13d86d2661e191d4b369b" title="access function">_dimx</a>()<span class="keyword"> const</span>{<span class="keywordflow">return</span> <a class="code" href="classbdm_1_1diffbifn.html#a193aa2c4a500139c0c4b669691e588e" title="cache for rvx.count()">dimx</a>;} |
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| 80 | <a name="l00092"></a><a class="code" href="classbdm_1_1diffbifn.html#031458f38c97cdb3aecde16f6a06dced">00092</a> <span class="keywordtype">int</span> <a class="code" href="classbdm_1_1diffbifn.html#031458f38c97cdb3aecde16f6a06dced" title="access function">_dimu</a>()<span class="keyword"> const</span>{<span class="keywordflow">return</span> <a class="code" href="classbdm_1_1diffbifn.html#30c45617eec89adeb4ebaa763d093fb0" title="cache for rvu.count()">dimu</a>;} |
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| 81 | <a name="l00093"></a>00093 }; |
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| 82 | <a name="l00094"></a>00094 |
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| 83 | <a name="l00096"></a>00096 <span class="comment">//TODO can be generalized into multilinear form!</span> |
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| 84 | <a name="l00097"></a><a class="code" href="classbdm_1_1bilinfn.html">00097</a> <span class="keyword">class </span><a class="code" href="classbdm_1_1bilinfn.html" title="Class representing function .">bilinfn</a>: <span class="keyword">public</span> <a class="code" href="classbdm_1_1diffbifn.html" title="Class representing a differentiable function of two variables .">diffbifn</a> |
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| 85 | <a name="l00098"></a>00098 { |
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| 86 | <a name="l00099"></a>00099 mat A; |
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| 87 | <a name="l00100"></a>00100 mat B; |
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| 88 | <a name="l00101"></a>00101 <span class="keyword">public</span> : |
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| 89 | <a name="l00102"></a>00102 vec <a class="code" href="classbdm_1_1bilinfn.html#e36a16e72e7f9fedf3cb18d2d5505a24" title="Evaluates .">eval</a> ( <span class="keyword">const</span> vec &x0, <span class="keyword">const</span> vec &u0 ); |
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| 90 | <a name="l00103"></a>00103 |
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| [270] | 91 | <a name="l00105"></a><a class="code" href="classbdm_1_1bilinfn.html#dc263f8d8d1876023a9d161d17a3c621">00105</a> <a class="code" href="classbdm_1_1bilinfn.html#dc263f8d8d1876023a9d161d17a3c621" title="Default constructor.">bilinfn</a> () : <a class="code" href="classbdm_1_1diffbifn.html" title="Class representing a differentiable function of two variables .">diffbifn</a> () ,A() ,B() {}; |
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| 92 | <a name="l00107"></a><a class="code" href="classbdm_1_1bilinfn.html#5a508fbb5fc013904d9b62b2231442de">00107</a> <span class="keywordtype">void</span> <a class="code" href="classbdm_1_1bilinfn.html#5a508fbb5fc013904d9b62b2231442de" title="Alternative constructor.">set_parameters</a>(<span class="keyword">const</span> mat A0, <span class="keyword">const</span> mat B0){ |
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| 93 | <a name="l00108"></a>00108 it_assert_debug(A0.rows()==B0.rows(),<span class="stringliteral">""</span>); |
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| 94 | <a name="l00109"></a>00109 A=A0;B=B0; |
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| 95 | <a name="l00110"></a>00110 <a class="code" href="classbdm_1_1fnc.html#52156cb4a52a62d51fc7455985797a62" title="Length of the output vector.">dimy</a>=A.rows(); |
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| 96 | <a name="l00111"></a>00111 <a class="code" href="classbdm_1_1diffbifn.html#a193aa2c4a500139c0c4b669691e588e" title="cache for rvx.count()">dimx</a>=A.cols(); |
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| 97 | <a name="l00112"></a>00112 <a class="code" href="classbdm_1_1diffbifn.html#30c45617eec89adeb4ebaa763d093fb0" title="cache for rvu.count()">dimu</a>=B.cols(); |
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| [261] | 98 | <a name="l00113"></a>00113 } |
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| [270] | 99 | <a name="l00115"></a><a class="code" href="classbdm_1_1bilinfn.html#33066f1054dd259df2ec5fafae4b46e6">00115</a> <span class="keywordtype">void</span> <a class="code" href="classbdm_1_1bilinfn.html#33066f1054dd259df2ec5fafae4b46e6" title="Evaluates and writes result into A .">dfdx_cond</a> ( <span class="keyword">const</span> vec &x0, <span class="keyword">const</span> vec &u0, mat &F, <span class="keywordtype">bool</span> full ) |
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| [261] | 100 | <a name="l00116"></a>00116 { |
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| [270] | 101 | <a name="l00117"></a>00117 it_assert_debug ( ( F.cols() ==A.cols() ) & ( F.rows() ==A.rows() ),<span class="stringliteral">"Allocated F is not compatible."</span> ); |
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| 102 | <a name="l00118"></a>00118 <span class="keywordflow">if</span> ( full ) F=A; <span class="comment">//else : nothing has changed no need to regenerate</span> |
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| [261] | 103 | <a name="l00119"></a>00119 } |
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| [270] | 104 | <a name="l00121"></a><a class="code" href="classbdm_1_1bilinfn.html#9cfe2f1c115ba7c3c75849a10a4f2c08">00121</a> <span class="keywordtype">void</span> <a class="code" href="classbdm_1_1bilinfn.html#9cfe2f1c115ba7c3c75849a10a4f2c08" title="Evaluates and writes result into A .">dfdu_cond</a> ( <span class="keyword">const</span> vec &x0, <span class="keyword">const</span> vec &u0, mat &F, <span class="keywordtype">bool</span> full=<span class="keyword">true</span> ) |
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| 105 | <a name="l00122"></a>00122 { |
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| 106 | <a name="l00123"></a>00123 it_assert_debug ( ( F.cols() ==B.cols() ) & ( F.rows() ==B.rows() ),<span class="stringliteral">"Allocated F is not compatible."</span> ); |
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| 107 | <a name="l00124"></a>00124 <span class="keywordflow">if</span> ( full ) F=B; <span class="comment">//else : nothing has changed no need to regenerate</span> |
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| 108 | <a name="l00125"></a>00125 } |
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| 109 | <a name="l00126"></a>00126 }; |
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| 110 | <a name="l00127"></a>00127 |
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| 111 | <a name="l00128"></a>00128 } <span class="comment">//namespace</span> |
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| 112 | <a name="l00129"></a>00129 <span class="preprocessor">#endif // FN_H</span> |
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| [91] | 113 | </pre></div></div> |
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| [270] | 114 | <hr size="1"><address style="text-align: right;"><small>Generated on Wed Feb 11 23:33:55 2009 for mixpp by |
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| [23] | 115 | <a href="http://www.doxygen.org/index.html"> |
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| [139] | 116 | <img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.6 </small></address> |
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| [23] | 117 | </body> |
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| 118 | </html> |
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