doi
/
NHP-pRF
изданак од ChrisKlink/NHP-pRF


			
							123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167
							<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
                "http://www.w3.org/TR/REC-html40/loose.dtd">
<html>
<head>
  <title>Description of testspecgram</title>
  <meta name="keywords" content="testspecgram">
  <meta name="description" content="cd 'C:\Documents and Settings\Admin\Desktop\';">
  <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
  <meta name="generator" content="m2html &copy; 2005 Guillaume Flandin">
  <meta name="robots" content="index, follow">
  <link type="text/css" rel="stylesheet" href="../../m2html.css">
  <script type="text/javascript">
    if (top.frames.length == 0) { top.location = "../../index.html"; };
  </script>
</head>
<body>
<a name="_top"></a>
<!-- ../menu.html chronux_2_10 --><!-- menu.html test -->
<h1>testspecgram
</h1>

<h2><a name="_name"></a>PURPOSE <a href="#_top"><img alt="^" border="0" src="../../up.png"></a></h2>
<div class="box"><strong>cd 'C:\Documents and Settings\Admin\Desktop\';</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 testspecgram(data) </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">cd 'C:\Documents and Settings\Admin\Desktop\';
data=wavread('bird109_26519_on_Aug_19_16_33.wav');</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="../../chronux_2_10/spectral_analysis/continuous/mtspecgramc.html" class="code" title="function [S,t,f,Serr]=mtspecgramc(data,movingwin,params)">mtspecgramc</a>	Multi-taper time-frequency spectrum - continuous process</li><li><a href="mtspecgramc_slow.html" class="code" title="function [S,t,f,Serr]=mtspecgramc_slow(data,movingwin,params)">mtspecgramc_slow</a>	Multi-taper time-frequency spectrum - continuous process</li></ul>
This function is called by:
<ul style="list-style-image:url(../../matlabicon.gif)">
</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 testspecgram(data)</a>
0002 
0003 
0004 <span class="comment">%cd 'C:\Documents and Settings\Admin\Desktop\';</span>
0005 <span class="comment">%data=wavread('bird109_26519_on_Aug_19_16_33.wav');</span>
0006 
0007 params.tapers = [3 5];
0008 params.fpass = [100 20000];
0009 params.Fs = 44100;
0010 params.pad = 2;
0011 max_time =10; <span class="comment">% seconds per run</span>
0012 max_tapers = 150;
0013 increment = 1.5;
0014 profile on
0015 
0016 
0017 nsamples = 1000;
0018 <span class="keyword">if</span> 1
0019 slow_results = [];
0020     
0021 <span class="keyword">while</span> 1
0022     tic
0023     [S,t,f] = <a href="mtspecgramc_slow.html" class="code" title="function [S,t,f,Serr]=mtspecgramc_slow(data,movingwin,params)">mtspecgramc_slow</a>( data(1:nsamples), [0.01 0.001], params );
0024     time = toc;
0025     result = [nsamples time];
0026     fprintf( <span class="string">'ran %d samples in %d seconds\n'</span>,nsamples, time );
0027     slow_results = [slow_results ;result];
0028     <span class="keyword">if</span> time &gt; max_time 
0029         <span class="keyword">break</span>
0030     <span class="keyword">end</span>
0031     nsamples = round(nsamples * increment);
0032 <span class="keyword">end</span>
0033 slow_results
0034 fig=figure();
0035 ax=axes(<span class="string">'XScale'</span>,<span class="string">'log'</span>,<span class="string">'YScale'</span>,<span class="string">'log'</span>);
0036 axes(ax);
0037 h=line( <span class="string">'Xdata'</span>,slow_results(:,1),<span class="string">'Ydata'</span>,slow_results(:,2),<span class="string">'Marker'</span>,<span class="string">'*'</span>);
0038 xlabel(<span class="string">'number of samples'</span>)
0039 ylabel(<span class="string">'time'</span>);
0040 title(<span class="string">'Original mtspecgramc'</span>);
0041 grid on
0042 drawnow;
0043 saveas(fig,<span class="string">'datalength_slow.png'</span>);
0044 
0045 nsamples = 1000;
0046 fast_results = [];
0047 <span class="keyword">while</span> 1
0048     tic
0049     [S,t,f] = <a href="../../chronux_2_10/spectral_analysis/continuous/mtspecgramc.html" class="code" title="function [S,t,f,Serr]=mtspecgramc(data,movingwin,params)">mtspecgramc</a>( data(1:nsamples), [0.01 0.001], params );
0050     time = toc;
0051     result = [nsamples time];
0052     fprintf( <span class="string">'ran %d samples in %d seconds\n'</span>,nsamples, time );
0053     fast_results = [fast_results ;result];
0054     <span class="keyword">if</span> time &gt; max_time 
0055         <span class="keyword">break</span>
0056     <span class="keyword">end</span>
0057     nsamples = round(nsamples * increment);
0058 <span class="keyword">end</span>
0059 fast_results
0060 fig=figure();
0061 ax=axes(<span class="string">'XScale'</span>,<span class="string">'log'</span>,<span class="string">'YScale'</span>,<span class="string">'log'</span>);
0062 axes(ax);
0063 h=line( <span class="string">'Xdata'</span>,fast_results(:,1),<span class="string">'Ydata'</span>,fast_results(:,2),<span class="string">'Marker'</span>,<span class="string">'*'</span>);
0064 xlabel(<span class="string">'number of samples'</span>)
0065 ylabel(<span class="string">'time'</span>);
0066 title(<span class="string">'Modified mtspecgramc - preallocate space'</span>);
0067 grid on
0068 drawnow;
0069 saveas(fig,<span class="string">'datalength_fast.png'</span>);
0070 
0071 compare = [];
0072 n = 1;
0073 <span class="keyword">while</span> n &lt;= min(length(slow_results(:,1)),length(fast_results(:,1)))
0074     compare_one = [slow_results(n,1) slow_results(n,2)/fast_results(n,2)];
0075     compare = [compare ;compare_one];
0076     n = n + 1; 
0077 <span class="keyword">end</span>
0078 compare
0079 fig=figure();
0080 ax=axes(<span class="string">'XScale'</span>,<span class="string">'log'</span>,<span class="string">'YScale'</span>,<span class="string">'lin'</span>);
0081 axes(ax);
0082 h=line( <span class="string">'Xdata'</span>,compare(:,1),<span class="string">'Ydata'</span>,compare(:,2),<span class="string">'Marker'</span>,<span class="string">'*'</span>);
0083 title(<span class="string">'Preallocation slowdown/speedup of mtspecgramc'</span>);
0084 xlabel(<span class="string">'number of samples'</span>)
0085 ylabel(<span class="string">'speedup'</span>);
0086 grid on
0087 drawnow;
0088 saveas(fig,<span class="string">'speedup.png'</span>);
0089 
0090 
0091 <span class="keyword">end</span>;
0092 
0093 nsamples=10000;
0094 results = [];
0095 n = 1;
0096 <span class="keyword">while</span> 1
0097     tic
0098     params.tapers = [n (2*n-1)];
0099     [S,t,f] = <a href="../../chronux_2_10/spectral_analysis/continuous/mtspecgramc.html" class="code" title="function [S,t,f,Serr]=mtspecgramc(data,movingwin,params)">mtspecgramc</a>( data(1:nsamples), [0.01 0.001], params );
0100     time = toc;
0101     result = [params.tapers(2) time];
0102     fprintf( <span class="string">'ran %d samples in %d seconds with tapers %d %d\n'</span>,nsamples, time,params.tapers(1),params.tapers(2) );
0103    results = [results ;result];
0104     <span class="keyword">if</span> time &gt; max_time || params.tapers(2) &gt; max_tapers
0105         <span class="keyword">break</span>
0106     <span class="keyword">end</span>
0107     n = round(n * increment);
0108 <span class="keyword">end</span>
0109 fig=figure();
0110 ax=axes(<span class="string">'XScale'</span>,<span class="string">'log'</span>,<span class="string">'YScale'</span>,<span class="string">'log'</span>);
0111 axes(ax);
0112 h=line( <span class="string">'Xdata'</span>,results(:,1),<span class="string">'Ydata'</span>,results(:,2),<span class="string">'Marker'</span>,<span class="string">'*'</span>);
0113 xlabel(<span class="string">'tapers'</span>)
0114 ylabel(<span class="string">'time'</span>);
0115 
0116 drawnow;
0117 saveas(fig,<span class="string">'tapers.png'</span>);
0118 
0119 
0120 stats = profile(<span class="string">'info'</span>)</pre></div>
<hr><address>Generated on Fri 12-Aug-2011 11:36:15 by <strong><a href="http://www.artefact.tk/software/matlab/m2html/" target="_parent">m2html</a></strong> &copy; 2005</address>
</body>
</html>