📄 getcvdata.html
字号:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd"><html><head> <title>Description of getCvData</title> <meta name="keywords" content="getCvData"> <meta name="description" content="getcvData: Get m-fold cross validation data"> <meta http-equiv="Content-Type" content="text/html; charset=big5"> <meta name="generator" content="m2html © 2003 Guillaume Flandin"> <meta name="robots" content="index, follow"> <link type="text/css" rel="stylesheet" href="../m2html.css"></head><body><a name="_top"></a><div><a href="../index.html">Home</a> > <a href="index.html">dcpr</a> > getCvData.m</div><!--<table width="100%"><tr><td align="left"><a href="../index.html"><img alt="<" border="0" src="../left.png"> Master index</a></td><td align="right"><a href="index.html">Index for dcpr <img alt=">" border="0" src="../right.png"></a></td></tr></table>--><h1>getCvData</h1><h2><a name="_name"></a>PURPOSE <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2><div class="box"><strong>getcvData: Get m-fold cross validation data</strong></div><h2><a name="_synopsis"></a>SYNOPSIS <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2><div class="box"><strong>function cvData=getCvData(DS, m) </strong></div><h2><a name="_description"></a>DESCRIPTION <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2><div class="fragment"><pre class="comment"> getcvData: Get m-fold cross validation data Usage: cvData=getCvData(DS, m) For example: DS=prData('iris'); cvData=getCvData(DS, 5);</pre></div><!-- crossreference --><h2><a name="_cross"></a>CROSS-REFERENCE INFORMATION <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2>This function calls:<ul style="list-style-image:url(../matlabicon.gif)"><li><a href="classSize.html" class="code" title="function [class, count] = classSize(DS, plotOpt)">classSize</a> classSize: Class sizes for a sample data set</li><li><a href="getCvData.html" class="code" title="function cvData=getCvData(DS, m)">getCvData</a> getcvData: Get m-fold cross validation data</li><li><a href="prData.html" class="code" title="function [DS, TS]=prData(dataName)">prData</a> prData: Various data set for PR</li></ul>This function is called by:<ul style="list-style-image:url(../matlabicon.gif)"><li><a href="getCvData.html" class="code" title="function cvData=getCvData(DS, m)">getCvData</a> getcvData: Get m-fold cross validation data</li></ul><!-- crossreference --><h2><a name="_subfunctions"></a>SUBFUNCTIONS <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2><ul style="list-style-image:url(../matlabicon.gif)"><li><a href="#_sub1" class="code">function selfdemo</a></li></ul><h2><a name="_source"></a>SOURCE CODE <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2><div class="fragment"><pre>0001 <a name="_sub0" href="#_subfunctions" class="code">function cvData=getCvData(DS, m)</a>0002 <span class="comment">% getcvData: Get m-fold cross validation data</span>0003 <span class="comment">% Usage: cvData=getCvData(DS, m)</span>0004 <span class="comment">%</span>0005 <span class="comment">% For example:</span>0006 <span class="comment">% DS=prData('iris');</span>0007 <span class="comment">% cvData=getCvData(DS, 5);</span>0008 0009 <span class="comment">% Roger Jang, 20070410</span>0010 0011 <span class="keyword">if</span> nargin<1, <a href="#_sub1" class="code" title="subfunction selfdemo">selfdemo</a>; <span class="keyword">return</span>; <span class="keyword">end</span>0012 0013 [dim, dataNum]=size(DS.input);0014 subSize=round(dataNum/m);0015 0016 [classLabel, <a href="classSize.html" class="code" title="function [class, count] = classSize(DS, plotOpt)">classSize</a>]=elementCount(DS.output);0017 classNum=length(classLabel);0018 <span class="keyword">for</span> i=1:classNum0019 classIndex{i}=find(i==DS.output); <span class="comment">% Indices of data in class i</span>0020 <span class="keyword">end</span>0021 0022 <span class="keyword">for</span> i=1:m 0023 cvData(i).DS.input=[];0024 cvData(i).DS.output=[];0025 cvData(i).TS.input=[];0026 cvData(i).TS.output=[];0027 index=[];0028 <span class="keyword">for</span> j=1:classNum0029 subSize=round(<a href="classSize.html" class="code" title="function [class, count] = classSize(DS, plotOpt)">classSize</a>(j)/m);0030 <span class="keyword">if</span> i~=m0031 indexRange=((i-1)*subSize+1):(i*subSize);0032 <span class="keyword">else</span>0033 indexRange=((m-1)*subSize+1):length(classIndex{j});0034 <span class="keyword">end</span>0035 index=[index, classIndex{j}(indexRange)];0036 <span class="keyword">end</span> 0037 cvData(i).DS.input=DS.input;0038 cvData(i).DS.output=DS.output;0039 cvData(i).DS.input(:, index)=[];0040 cvData(i).DS.output(:, index)=[];0041 tempIndex=1:dataNum;0042 tempIndex(index)=[];0043 cvData(i).DS.index=tempIndex;0044 cvData(i).TS.input=DS.input(:, index);0045 cvData(i).TS.output=DS.output(:, index);0046 cvData(i).TS.index=index;0047 <span class="keyword">end</span>0048 0049 <span class="comment">% ====== Self demo</span>0050 <a name="_sub1" href="#_subfunctions" class="code">function selfdemo</a>0051 DS=<a href="prData.html" class="code" title="function [DS, TS]=prData(dataName)">prData</a>(<span class="string">'iris'</span>);0052 cvData=<a href="getCvData.html" class="code" title="function cvData=getCvData(DS, m)">getCvData</a>(DS, 5);0053 cvData(1).DS0054 cvData(1).TS</pre></div><hr><address>Generated on Thu 30-Oct-2008 12:53:56 by <strong><a href="http://www.artefact.tk/software/matlab/m2html/">m2html</a></strong> © 2003</address></body></html>⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -