vqdataplot.html
来自「一个关于数据聚类和模式识别的程序,在生物化学,化学中因该都可以用到.希望对大家有」· HTML 代码 · 共 70 行
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd"><html><head> <title>Description of vqDataPlot</title> <meta name="keywords" content="vqDataPlot"> <meta name="description" content="vqDataPlot: Plot the result of vector quantization (used in kmeans.m and vqLBG.m)"> <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> > vqDataPlot.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>vqDataPlot</h1><h2><a name="_name"></a>PURPOSE <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2><div class="box"><strong>vqDataPlot: Plot the result of vector quantization (used in kmeans.m and vqLBG.m)</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 vqDataPlot(data, center) </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"> vqDataPlot: Plot the result of vector quantization (used in kmeans.m and vqLBG.m)</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="dcprDataPlot.html" class="code" title="function dcprDataPlot(DS, plotTitle, displayAnnotation)">dcprDataPlot</a> dcprDataPlot: Plot of 2D data for data clustering or pattern recognition</li></ul>This function is called by:<ul style="list-style-image:url(../matlabicon.gif)"><li><a href="vqKmeans.html" class="code" title="function [center, U, distortion, allCenter] = vqKmeans(data, clusterNum, plotOpt)">vqKmeans</a> vqKmeans: Vector quantization using K-means clustering (Forgy's batch-mode method)</li><li><a href="vqLBG.html" class="code" title="function [center, U] = vqLBG(data, codeBookSize, dispOpt, kmeansFcn)">vqLBG</a> vqLBG: Vector quantization using LBG method of center splitting</li></ul><!-- crossreference --><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 vqDataPlot(data, center)</a>0002 <span class="comment">% vqDataPlot: Plot the result of vector quantization (used in kmeans.m and vqLBG.m)</span>0003 0004 <span class="comment">% Find U (Copied from vqKmeans.m)</span>0005 dim = size(data, 1);0006 dataNum = size(data, 2);0007 centerNum = size(center, 2);0008 <span class="comment">% ====== Compute distance matrix</span>0009 distMat=pairwiseSqrDistance(center, data);0010 <span class="comment">% ====== Find the U (partition matrix)</span>0011 [minDist, colIndex] = min(distMat);0012 U = zeros(size(distMat));0013 U(colIndex+centerNum*(0:dataNum-1)) = 1;0014 0015 <span class="comment">% Plot data</span>0016 DS.input=data;0017 [junk, DS.output]=max(U);0018 <a href="dcprDataPlot.html" class="code" title="function dcprDataPlot(DS, plotTitle, displayAnnotation)">dcprDataPlot</a>(DS);0019 0020 <span class="comment">% Display the centers</span>0021 clusterNum = size(center,2);0022 <span class="keyword">for</span> i=1:clusterNum,0023 line(center(1,i), center(2,i), <span class="string">'color'</span>, <span class="string">'k'</span>, <span class="string">'marker'</span>, <span class="string">'o'</span>, <span class="string">'linestyle'</span>, <span class="string">'none'</span>, <span class="string">'linewidth'</span>, 2, <span class="string">'markerSize'</span>, 10);0024 <span class="keyword">end</span></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
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