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[23] | 17 | <h1>work/mixpp/bdm/stat/libFN.h</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">//</span> |
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| 18 | <a name="l00002"></a>00002 <span class="comment">// C++ Interface: itpp_ext</span> |
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| 19 | <a name="l00003"></a>00003 <span class="comment">//</span> |
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| 20 | <a name="l00004"></a>00004 <span class="comment">// Description:</span> |
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| 21 | <a name="l00005"></a>00005 <span class="comment">//</span> |
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| 22 | <a name="l00006"></a>00006 <span class="comment">//</span> |
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| 23 | <a name="l00007"></a>00007 <span class="comment">// Author: smidl <smidl@utia.cas.cz>, (C) 2008</span> |
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| 24 | <a name="l00008"></a>00008 <span class="comment">//</span> |
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| 25 | <a name="l00009"></a>00009 <span class="comment">// Copyright: See COPYING file that comes with this distribution</span> |
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| 26 | <a name="l00010"></a>00010 <span class="comment">//</span> |
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| 27 | <a name="l00011"></a>00011 <span class="comment">//</span> |
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[33] | 28 | <a name="l00012"></a>00012 <span class="preprocessor">#ifndef FN_H</span> |
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| 29 | <a name="l00013"></a>00013 <span class="preprocessor"></span><span class="preprocessor">#define FN_H</span> |
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| 30 | <a name="l00014"></a>00014 <span class="preprocessor"></span> |
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| 31 | <a name="l00015"></a>00015 <span class="preprocessor">#include <itpp/itbase.h></span> |
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| 32 | <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> |
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| 33 | <a name="l00017"></a>00017 |
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| 34 | <a name="l00018"></a>00018 <span class="keyword">using namespace </span>itpp; |
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| 35 | <a name="l00019"></a>00019 |
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[91] | 36 | <a name="l00021"></a><a class="code" href="classconstfn.html">00021</a> <span class="keyword">class </span><a class="code" href="classconstfn.html" title="class representing function , here rv is empty">constfn</a> : <span class="keyword">public</span> <a class="code" href="classfnc.html" title="Class representing function of variable represented by rv.">fnc</a> |
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[33] | 37 | <a name="l00022"></a>00022 { |
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| 38 | <a name="l00024"></a>00024 vec val; |
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| 39 | <a name="l00025"></a>00025 |
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| 40 | <a name="l00026"></a>00026 <span class="keyword">public</span>: |
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| 41 | <a name="l00027"></a>00027 <span class="comment">//vec eval() {return val;};</span> |
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| 42 | <a name="l00029"></a><a class="code" href="classconstfn.html#0411f603cbf675f2bc04a8f85e4e3b52">00029</a> <span class="comment"></span> vec <a class="code" href="classconstfn.html#0411f603cbf675f2bc04a8f85e4e3b52" title="inherited">eval</a> ( <span class="keyword">const</span> vec &cond ) {<span class="keywordflow">return</span> val;}; |
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[91] | 43 | <a name="l00031"></a><a class="code" href="classconstfn.html#d08acd7fac0ef3edfa59bbe48403f2bc">00031</a> <a class="code" href="classconstfn.html#d08acd7fac0ef3edfa59bbe48403f2bc" title="Default constructor.">constfn</a> ( <span class="keyword">const</span> vec &val0 ) :<a class="code" href="classfnc.html" title="Class representing function of variable represented by rv.">fnc</a>(val0.length()), val ( val0 ) {}; |
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[33] | 44 | <a name="l00032"></a>00032 }; |
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| 45 | <a name="l00033"></a>00033 |
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[91] | 46 | <a name="l00035"></a><a class="code" href="classlinfn.html">00035</a> <span class="keyword">class </span><a class="code" href="classlinfn.html" title="Class representing function .">linfn</a>: <span class="keyword">public</span> <a class="code" href="classfnc.html" title="Class representing function of variable represented by rv.">fnc</a> |
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[33] | 47 | <a name="l00036"></a>00036 { |
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| 48 | <a name="l00038"></a>00038 <a class="code" href="classRV.html" title="Class representing variables, most often random variables.">RV</a> rv; |
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| 49 | <a name="l00040"></a>00040 mat A; |
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| 50 | <a name="l00042"></a>00042 vec B; |
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| 51 | <a name="l00043"></a>00043 <span class="keyword">public</span> : |
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[91] | 52 | <a name="l00044"></a><a class="code" href="classlinfn.html#fac0e56701f4c7beaf1c91f9b2a55f0b">00044</a> vec <a class="code" href="classlinfn.html#fac0e56701f4c7beaf1c91f9b2a55f0b" title="function evaluates numerical value of at cond ">eval</a> (<span class="keyword">const</span> vec &cond ) {it_assert_debug ( cond.length() ==rv.<a class="code" href="classRV.html#f5c7b8bd589eef09ccdf3329a0addea0" title="Return number of scalars in the RV.">count</a>(), <span class="stringliteral">"linfn::eval Wrong cond."</span> );<span class="keywordflow">return</span> A*cond+B;}; |
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[33] | 53 | <a name="l00045"></a>00045 |
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| 54 | <a name="l00046"></a>00046 <span class="comment">// linfn evalsome ( ivec &rvind );</span> |
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[91] | 55 | <a name="l00048"></a><a class="code" href="classlinfn.html#01c70122a7783ddb0d87e6a82685adcb">00048</a> <span class="comment"></span> <a class="code" href="classlinfn.html#01c70122a7783ddb0d87e6a82685adcb" title="default constructor">linfn</a> ( <span class="keyword">const</span> <a class="code" href="classRV.html" title="Class representing variables, most often random variables.">RV</a> &rv0 ) : <a class="code" href="classfnc.html" title="Class representing function of variable represented by rv.">fnc</a>(rv0.count()), rv ( rv0 ),A ( eye ( rv0.count() ) ),B ( zeros ( rv0.count() ) ) { }; |
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[33] | 56 | <a name="l00050"></a><a class="code" href="classlinfn.html#15eb81f2141984a61706b7ad5b411505">00050</a> <span class="keywordtype">void</span> <a class="code" href="classlinfn.html#15eb81f2141984a61706b7ad5b411505" 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;}; |
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| 57 | <a name="l00051"></a>00051 }; |
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| 58 | <a name="l00052"></a>00052 |
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| 59 | <a name="l00053"></a>00053 |
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[91] | 60 | <a name="l00063"></a><a class="code" href="classdiffbifn.html">00063</a> <span class="keyword">class </span><a class="code" href="classdiffbifn.html" title="Class representing a differentiable function of two variables .">diffbifn</a>: <span class="keyword">public</span> <a class="code" href="classfnc.html" title="Class representing function of variable represented by rv.">fnc</a> |
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[33] | 61 | <a name="l00064"></a>00064 { |
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| 62 | <a name="l00065"></a>00065 <span class="keyword">protected</span>: |
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| 63 | <a name="l00067"></a><a class="code" href="classdiffbifn.html#bcf96b86250c3cbd465ba5ee62474b75">00067</a> <a class="code" href="classRV.html" title="Class representing variables, most often random variables.">RV</a> <a class="code" href="classdiffbifn.html#bcf96b86250c3cbd465ba5ee62474b75" title="Indentifier of the first rv.">rvx</a>; |
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| 64 | <a name="l00069"></a><a class="code" href="classdiffbifn.html#c41c74c7942dba51ef0b0bfed963447d">00069</a> <a class="code" href="classRV.html" title="Class representing variables, most often random variables.">RV</a> <a class="code" href="classdiffbifn.html#c41c74c7942dba51ef0b0bfed963447d" title="Indentifier of the second rv.">rvu</a>; |
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| 65 | <a name="l00071"></a><a class="code" href="classdiffbifn.html#f6918bc0a9dad656b4cddc028137eb78">00071</a> <span class="keywordtype">int</span> <a class="code" href="classdiffbifn.html#f6918bc0a9dad656b4cddc028137eb78" title="cache for rvx.count()">dimx</a>; |
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| 66 | <a name="l00073"></a><a class="code" href="classdiffbifn.html#2e07ce491e973f03d763e37624d0fe79">00073</a> <span class="keywordtype">int</span> <a class="code" href="classdiffbifn.html#2e07ce491e973f03d763e37624d0fe79" title="cache for rvu.count()">dimu</a>; |
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| 67 | <a name="l00074"></a>00074 <span class="keyword">public</span>: |
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[91] | 68 | <a name="l00076"></a><a class="code" href="classdiffbifn.html#ad7673e16aa1a046b131b24c731c4632">00076</a> vec <a class="code" href="classdiffbifn.html#ad7673e16aa1a046b131b24c731c4632" title="Evaluates (VS: Do we really need common eval? ).">eval</a> ( <span class="keyword">const</span> vec &cond ) |
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[33] | 69 | <a name="l00077"></a>00077 { |
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| 70 | <a name="l00078"></a>00078 it_assert_debug ( cond.length() == ( <a class="code" href="classdiffbifn.html#f6918bc0a9dad656b4cddc028137eb78" title="cache for rvx.count()">dimx</a>+<a class="code" href="classdiffbifn.html#2e07ce491e973f03d763e37624d0fe79" title="cache for rvu.count()">dimu</a> ), <span class="stringliteral">"linfn::eval Wrong cond."</span> ); |
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[91] | 71 | <a name="l00079"></a>00079 <span class="keywordflow">return</span> <a class="code" href="classdiffbifn.html#ad7673e16aa1a046b131b24c731c4632" title="Evaluates (VS: Do we really need common eval? ).">eval</a> ( cond ( 0,<a class="code" href="classdiffbifn.html#f6918bc0a9dad656b4cddc028137eb78" title="cache for rvx.count()">dimx</a>-1 ),cond ( <a class="code" href="classdiffbifn.html#f6918bc0a9dad656b4cddc028137eb78" title="cache for rvx.count()">dimx</a>,<a class="code" href="classdiffbifn.html#f6918bc0a9dad656b4cddc028137eb78" title="cache for rvx.count()">dimx</a>+<a class="code" href="classdiffbifn.html#2e07ce491e973f03d763e37624d0fe79" title="cache for rvu.count()">dimu</a> ) );<span class="comment">//-1 = end (in matlab)</span> |
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[33] | 72 | <a name="l00080"></a>00080 }; |
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| 73 | <a name="l00081"></a>00081 |
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[91] | 74 | <a name="l00083"></a><a class="code" href="classdiffbifn.html#40d8a7eee45acc55cda33d43282faa03">00083</a> <span class="keyword">virtual</span> vec <a class="code" href="classdiffbifn.html#ad7673e16aa1a046b131b24c731c4632" 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="classfnc.html#22d51d10a7901331167f64f80d1af8e9" title="Length of the output vector.">dimy</a> );}; |
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[33] | 75 | <a name="l00085"></a><a class="code" href="classdiffbifn.html#6d217a02d4fa13931258d4bebdd0feb4">00085</a> <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classdiffbifn.html#6d217a02d4fa13931258d4bebdd0feb4" 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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| 76 | <a name="l00087"></a><a class="code" href="classdiffbifn.html#1978bafd7909d15c139a08c495c24aa0">00087</a> <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classdiffbifn.html#1978bafd7909d15c139a08c495c24aa0" 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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[91] | 77 | <a name="l00089"></a><a class="code" href="classdiffbifn.html#797772c0d5aab8ddccec19dfe4bb2d77">00089</a> <a class="code" href="classdiffbifn.html#797772c0d5aab8ddccec19dfe4bb2d77" title="Default constructor (dimy is not set!).">diffbifn</a> (<span class="keywordtype">int</span> <a class="code" href="classfnc.html#22d51d10a7901331167f64f80d1af8e9" title="Length of the output vector.">dimy</a>, <span class="keyword">const</span> <a class="code" href="classRV.html" title="Class representing variables, most often random variables.">RV</a> rvx0, <span class="keyword">const</span> <a class="code" href="classRV.html" title="Class representing variables, most often random variables.">RV</a> rvu0 ) : <a class="code" href="classfnc.html" title="Class representing function of variable represented by rv.">fnc</a>(dimy), <a class="code" href="classdiffbifn.html#bcf96b86250c3cbd465ba5ee62474b75" title="Indentifier of the first rv.">rvx</a> ( rvx0 ),<a class="code" href="classdiffbifn.html#c41c74c7942dba51ef0b0bfed963447d" title="Indentifier of the second rv.">rvu</a> ( rvu0 ) {<a class="code" href="classdiffbifn.html#f6918bc0a9dad656b4cddc028137eb78" title="cache for rvx.count()">dimx</a>=<a class="code" href="classdiffbifn.html#bcf96b86250c3cbd465ba5ee62474b75" title="Indentifier of the first rv.">rvx</a>.<a class="code" href="classRV.html#f5c7b8bd589eef09ccdf3329a0addea0" title="Return number of scalars in the RV.">count</a>();<a class="code" href="classdiffbifn.html#2e07ce491e973f03d763e37624d0fe79" title="cache for rvu.count()">dimu</a>=<a class="code" href="classdiffbifn.html#c41c74c7942dba51ef0b0bfed963447d" title="Indentifier of the second rv.">rvu</a>.<a class="code" href="classRV.html#f5c7b8bd589eef09ccdf3329a0addea0" title="Return number of scalars in the RV.">count</a>();}; |
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[33] | 78 | <a name="l00091"></a><a class="code" href="classdiffbifn.html#436de7a7301ea9eac7d6081b893bbf57">00091</a> <span class="keywordtype">int</span> <a class="code" href="classdiffbifn.html#436de7a7301ea9eac7d6081b893bbf57" title="access function">_dimx</a>()<span class="keyword"> const</span>{<span class="keywordflow">return</span> <a class="code" href="classdiffbifn.html#f6918bc0a9dad656b4cddc028137eb78" title="cache for rvx.count()">dimx</a>;} |
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| 79 | <a name="l00093"></a><a class="code" href="classdiffbifn.html#fc8779acbff170611aff0ee70cee3879">00093</a> <span class="keywordtype">int</span> <a class="code" href="classdiffbifn.html#fc8779acbff170611aff0ee70cee3879" title="access function">_dimu</a>()<span class="keyword"> const</span>{<span class="keywordflow">return</span> <a class="code" href="classdiffbifn.html#2e07ce491e973f03d763e37624d0fe79" title="cache for rvu.count()">dimu</a>;} |
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| 80 | <a name="l00094"></a>00094 }; |
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| 81 | <a name="l00095"></a>00095 |
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| 82 | <a name="l00097"></a>00097 <span class="comment">//TODO can be generalized into multilinear form!</span> |
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[91] | 83 | <a name="l00098"></a><a class="code" href="classbilinfn.html">00098</a> <span class="keyword">class </span><a class="code" href="classbilinfn.html" title="Class representing function .">bilinfn</a>: <span class="keyword">public</span> <a class="code" href="classdiffbifn.html" title="Class representing a differentiable function of two variables .">diffbifn</a> |
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[33] | 84 | <a name="l00099"></a>00099 { |
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| 85 | <a name="l00100"></a>00100 mat A; |
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| 86 | <a name="l00101"></a>00101 mat B; |
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| 87 | <a name="l00102"></a>00102 <span class="keyword">public</span> : |
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[91] | 88 | <a name="l00103"></a>00103 vec <a class="code" href="classbilinfn.html#e36a16e72e7f9fedf3cb18d2d5505a24" title="Evaluates .">eval</a> ( <span class="keyword">const</span> vec &x0, <span class="keyword">const</span> vec &u0 ); |
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[33] | 89 | <a name="l00104"></a>00104 |
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[91] | 90 | <a name="l00106"></a><a class="code" href="classbilinfn.html#af9f36282730d910a41b95f4d1fb8221">00106</a> <a class="code" href="classbilinfn.html#af9f36282730d910a41b95f4d1fb8221" title="Default constructor.">bilinfn</a> ( <span class="keyword">const</span> <a class="code" href="classRV.html" title="Class representing variables, most often random variables.">RV</a> &rvx0, <span class="keyword">const</span> <a class="code" href="classRV.html" title="Class representing variables, most often random variables.">RV</a> &rvu0 ) : <a class="code" href="classdiffbifn.html" title="Class representing a differentiable function of two variables .">diffbifn</a> (<a class="code" href="classdiffbifn.html#f6918bc0a9dad656b4cddc028137eb78" title="cache for rvx.count()">dimx</a>, rvx0,rvu0 ) ,A ( eye ( <a class="code" href="classdiffbifn.html#f6918bc0a9dad656b4cddc028137eb78" title="cache for rvx.count()">dimx</a> ) ),B ( zeros ( <a class="code" href="classdiffbifn.html#f6918bc0a9dad656b4cddc028137eb78" title="cache for rvx.count()">dimx</a>,<a class="code" href="classdiffbifn.html#2e07ce491e973f03d763e37624d0fe79" title="cache for rvu.count()">dimu</a> ) ) {}; |
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[33] | 91 | <a name="l00108"></a>00108 <a class="code" href="classbilinfn.html#af9f36282730d910a41b95f4d1fb8221" title="Default constructor.">bilinfn</a> ( <span class="keyword">const</span> <a class="code" href="classRV.html" title="Class representing variables, most often random variables.">RV</a> &rvx0, <span class="keyword">const</span> <a class="code" href="classRV.html" title="Class representing variables, most often random variables.">RV</a> &rvu0, <span class="keyword">const</span> mat &A0, <span class="keyword">const</span> mat &B0 ); |
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| 92 | <a name="l00110"></a><a class="code" href="classbilinfn.html#79c022de8dbe2b054bb9cc49345f3ef5">00110</a> <span class="keywordtype">void</span> <a class="code" href="classbilinfn.html#79c022de8dbe2b054bb9cc49345f3ef5" 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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| 93 | <a name="l00111"></a>00111 { |
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| 94 | <a name="l00112"></a>00112 it_assert_debug ( ( F.cols() ==A.cols() ) & ( F.rows() ==A.rows() ),<span class="stringliteral">"Allocated F is not compatible."</span> ); |
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| 95 | <a name="l00113"></a>00113 <span class="keywordflow">if</span> ( full ) F=A; <span class="comment">//else : nothing has changed no need to regenerate</span> |
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| 96 | <a name="l00114"></a>00114 } |
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| 97 | <a name="l00116"></a><a class="code" href="classbilinfn.html#90f2b15612b14883d6ed2b0e295cb82b">00116</a> <span class="keywordtype">void</span> <a class="code" href="classbilinfn.html#90f2b15612b14883d6ed2b0e295cb82b" 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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| 98 | <a name="l00117"></a>00117 { |
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| 99 | <a name="l00118"></a>00118 it_assert_debug ( ( F.cols() ==B.cols() ) & ( F.rows() ==B.rows() ),<span class="stringliteral">"Allocated F is not compatible."</span> ); |
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| 100 | <a name="l00119"></a>00119 <span class="keywordflow">if</span> ( full ) F=B; <span class="comment">//else : nothing has changed no need to regenerate</span> |
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| 101 | <a name="l00120"></a>00120 } |
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| 102 | <a name="l00121"></a>00121 }; |
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| 103 | <a name="l00122"></a>00122 |
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| 104 | <a name="l00123"></a>00123 <span class="preprocessor">#endif // FN_H</span> |
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[91] | 105 | </pre></div></div> |
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| 106 | <hr size="1"><address style="text-align: right;"><small>Generated on Tue Apr 29 20:46:25 2008 for mixpp by |
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[23] | 107 | <a href="http://www.doxygen.org/index.html"> |
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[91] | 108 | <img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.5 </small></address> |
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[23] | 109 | </body> |
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| 110 | </html> |
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