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📄 mergesets.html

📁 support vector machine的一个matlab工具箱
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<html><head>  <meta HTTP-EQUIV="Content-Type" CONTENT="text/html;charset=ISO-8859-1">  <title>mergesets.m</title><link rel="stylesheet" type="text/css" href="../../m-syntax.css"></head><body><code><span class=defun_kw>function</span>&nbsp;<span class=defun_name>mergesets</span>(<span class=defun_in>&nbsp;DirName,&nbsp;OutputFile&nbsp;</span>)
<br><span class=h1>%&nbsp;MERGESETS&nbsp;Merges&nbsp;data&nbsp;sets&nbsp;to&nbsp;one&nbsp;labeled&nbsp;data&nbsp;file.
</span><br><span class=help>%
</span><br><span class=help>%&nbsp;<span class=help_field>Synopsis:</span></span><br><span class=help>%&nbsp;&nbsp;mergesets(DirName,OutputFile)
</span><br><span class=help>%
</span><br><span class=help>%&nbsp;<span class=help_field>Description:</span></span><br><span class=help>%&nbsp;&nbsp;It&nbsp;loads&nbsp;data&nbsp;files&nbsp;from&nbsp;given&nbsp;directory&nbsp;DirName&nbsp;and
</span><br><span class=help>%&nbsp;&nbsp;merges&nbsp;them&nbsp;to&nbsp;one&nbsp;labeled&nbsp;data&nbsp;file.&nbsp;The&nbsp;individual&nbsp;files
</span><br><span class=help>%&nbsp;&nbsp;are&nbsp;assumed&nbsp;to&nbsp;contain&nbsp;the&nbsp;field&nbsp;X&nbsp;[dim&nbsp;x&nbsp;num_data].
</span><br><span class=help>%&nbsp;&nbsp;The&nbsp;file&nbsp;names&nbsp;have&nbsp;to&nbsp;have&nbsp;the&nbsp;following&nbsp;format
</span><br><span class=help>%&nbsp;&nbsp;name_xxx.mat&nbsp;('_'&nbsp;can&nbsp;be&nbsp;omitted),&nbsp;where&nbsp;xxx&nbsp;denotes&nbsp;an&nbsp;
</span><br><span class=help>%&nbsp;&nbsp;integer&nbsp;which&nbsp;is&nbsp;used&nbsp;to&nbsp;label&nbsp;the&nbsp;data&nbsp;X&nbsp;from&nbsp;the&nbsp;given&nbsp;
</span><br><span class=help>%&nbsp;&nbsp;file.&nbsp;The&nbsp;OutputFile&nbsp;contains&nbsp;item&nbsp;X&nbsp;[dim&nbsp;x&nbsp;num_all_data]&nbsp;
</span><br><span class=help>%&nbsp;&nbsp;with&nbsp;all&nbsp;merged&nbsp;data&nbsp;and&nbsp;vector&nbsp;of&nbsp;labels&nbsp;y&nbsp;[1&nbsp;x&nbsp;num_all_data].&nbsp;
</span><br><span class=help>%&nbsp;
</span><br><span class=help>%&nbsp;<span class=help_field>Input:</span></span><br><span class=help>%&nbsp;&nbsp;DirName&nbsp;[string]&nbsp;Input&nbsp;directory.
</span><br><span class=help>%&nbsp;&nbsp;OutputFile&nbsp;[string]&nbsp;Output&nbsp;data&nbsp;file.
</span><br><span class=help>%
</span><br><span class=help>%&nbsp;<span class=help_field>Output:</span></span><br><span class=help>%&nbsp;&nbsp;file&nbsp;OutputFile&nbsp;with&nbsp;items:
</span><br><span class=help>%&nbsp;&nbsp;&nbsp;X&nbsp;[dim&nbsp;x&nbsp;num_all_data]&nbsp;Data&nbsp;matrix.
</span><br><span class=help>%&nbsp;&nbsp;&nbsp;y&nbsp;[1&nbsp;x&nbsp;num_all_data]&nbsp;Labels&nbsp;of&nbsp;data.
</span><br><span class=help>%
</span><br><hr><br><span class=help1>%&nbsp;<span class=help1_field>(c)</span>&nbsp;Statistical&nbsp;Pattern&nbsp;Recognition&nbsp;Toolbox,&nbsp;(C)&nbsp;1999-2003,
</span><br><span class=help1>%&nbsp;Written&nbsp;by&nbsp;Vojtech&nbsp;Franc&nbsp;and&nbsp;Vaclav&nbsp;Hlavac,
</span><br><span class=help1>%&nbsp;&lt;a&nbsp;href="http://www.cvut.cz"&gt;Czech&nbsp;Technical&nbsp;University&nbsp;Prague&lt;/a&gt;,
</span><br><span class=help1>%&nbsp;&lt;a&nbsp;href="http://www.feld.cvut.cz"&gt;Faculty&nbsp;of&nbsp;Electrical&nbsp;engineering&lt;/a&gt;,
</span><br><span class=help1>%&nbsp;&lt;a&nbsp;href="http://cmp.felk.cvut.cz"&gt;Center&nbsp;for&nbsp;Machine&nbsp;Perception&lt;/a&gt;
</span><br><br><span class=help1>%&nbsp;<span class=help1_field>Modifications:</span>
</span><br><span class=help1>%&nbsp;&nbsp;9-sep-2003,&nbsp;VF
</span><br><br><hr>list=&nbsp;dir(DirName);
<br>
<br>X&nbsp;=[];
<br>y&nbsp;=&nbsp;[];
<br><span class=keyword>for</span>&nbsp;i=1:length(list),
<br>&nbsp;&nbsp;&nbsp;
<br>&nbsp;&nbsp;&nbsp;<span class=keyword>if</span>&nbsp;~list(i).isdir,
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;num=GetLabel(list(i).name);
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class=keyword>if</span>&nbsp;~isempty(num),
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class=io>fprintf</span>(<span class=quotes>'Input&nbsp;file:&nbsp;%s,&nbsp;label:&nbsp;%d\n'</span>,&nbsp;list(i).name,&nbsp;num);
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;data&nbsp;=&nbsp;load([DirName&nbsp;list(i).name]);
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;X&nbsp;=&nbsp;[X&nbsp;,&nbsp;data.X];
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;y&nbsp;=&nbsp;[y,&nbsp;ones(1,size(data.X,2))*num];
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class=keyword>end</span>
<br>&nbsp;&nbsp;&nbsp;<span class=keyword>end</span>
<br><span class=keyword>end</span>
<br>
<br><span class=io>fprintf</span>(<span class=quotes>'Saving&nbsp;data&nbsp;to:&nbsp;%s\n'</span>,&nbsp;OutputFile&nbsp;);
<br>save(OutputFile,&nbsp;<span class=quotes>'X'</span>,<span class=quotes>'y'</span>);
<br>
<br><span class=jump>return</span>;
<br>
<br>
<br><span class=defun_kw>function</span>&nbsp;<span class=defun_out>num</span>=<span class=defun_name>GetLabel</span>(<span class=defun_in>&nbsp;fname&nbsp;</span>)
<br>
<br>&nbsp;&nbsp;<span class=keyword>if</span>&nbsp;strcmpi(&nbsp;fname(<span class=keyword>end</span>-2:<span class=keyword>end</span>),&nbsp;<span class=quotes>'mat'</span>&nbsp;)~=1,&nbsp;
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;num=[];&nbsp;
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class=jump>return</span>;
<br>&nbsp;&nbsp;<span class=keyword>end</span>
<br>
<br>&nbsp;&nbsp;<span class=keyword>for</span>&nbsp;i=1:length(fname)-4,
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b&nbsp;=&nbsp;fname(i:<span class=keyword>end</span>-4);
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;num=str2num(&nbsp;b&nbsp;);
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class=keyword>if</span>&nbsp;~isempty(num),&nbsp;<span class=jump>return</span>;&nbsp;<span class=keyword>end</span>
<br>&nbsp;&nbsp;<span class=keyword>end</span>
<br>
<br>num=[];
<br>
<br><span class=jump>return</span>;
<br>
<br><span class=comment>%EOF</span><br></code>

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