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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 avw_stats</title> <meta name="keywords" content="avw_stats"> <meta name="description" content="avw_stats - calculate region of interest stats for avw data"> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <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">mri_toolbox</a> > avw_stats.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 mri_toolbox <img alt=">" border="0" src="../right.png"></a></td></tr></table>--><h1>avw_stats</h1><h2><a name="_name"></a>PURPOSE <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2><div class="box"><strong>avw_stats - calculate region of interest stats for avw 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 [stat] = avw_stats(stat) </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"> avw_stats - calculate region of interest stats for avw data
[stat] = avw_stats(stat)
stat is a struct with the following fields:
stat.roi - a region of interest from avw.img, see avw_roi.
stat.function - cell array of strings, which can be any matlab
descriptive stats function. The defaults are:
{'mean','std','min','max','median','sum'}
For example,
stat.roi.value = avw.img(1:10,1:10,1:10);
stat.function = {'mean'};
stat.value - output array of stats values, with length(stat.function).
see also <a href="avw_roi.html" class="code" title="function [roi] = avw_roi(avw,position,shape)">avw_roi</a></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)"></ul>This function is called by:<ul style="list-style-image:url(../matlabicon.gif)"><li><a href="avw_view.html" class="code" title="function [ varargout ] = avw_view(avw,parent,command),">avw_view</a> avw_view - create and navigate ortho views of Analyze 7.5 volume</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 [stat] = avw_stats(stat)</a>0002 0003 <span class="comment">% avw_stats - calculate region of interest stats for avw data</span>0004 <span class="comment">%</span>0005 <span class="comment">% [stat] = avw_stats(stat)</span>0006 <span class="comment">%</span>0007 <span class="comment">% stat is a struct with the following fields:</span>0008 <span class="comment">%</span>0009 <span class="comment">% stat.roi - a region of interest from avw.img, see avw_roi.</span>0010 <span class="comment">%</span>0011 <span class="comment">% stat.function - cell array of strings, which can be any matlab</span>0012 <span class="comment">% descriptive stats function. The defaults are:</span>0013 <span class="comment">% {'mean','std','min','max','median','sum'}</span>0014 <span class="comment">%</span>0015 <span class="comment">% For example,</span>0016 <span class="comment">%</span>0017 <span class="comment">% stat.roi.value = avw.img(1:10,1:10,1:10);</span>0018 <span class="comment">% stat.function = {'mean'};</span>0019 <span class="comment">%</span>0020 <span class="comment">% stat.value - output array of stats values, with length(stat.function).</span>0021 <span class="comment">%</span>0022 <span class="comment">% see also avw_roi</span>0023 <span class="comment">%</span>0024 0025 <span class="comment">% $Revision: 1.2 $ $Date: 2004/02/07 01:41:51 $</span>0026 0027 <span class="comment">% Licence: GNU GPL, no express or implied warranties</span>0028 <span class="comment">% History: 08/2003, Darren.Weber_at_radiology.ucsf.edu</span>0029 <span class="comment">%</span>0030 <span class="comment">%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%</span>0031 0032 0033 version = <span class="string">'[$Revision: 1.2 $]'</span>;0034 fprintf(<span class="string">'\nAVW_STATS [v%s]\n'</span>,version(12:16)); tic;0035 0036 <span class="keyword">if</span> ~exist(<span class="string">'stat'</span>,<span class="string">'var'</span>),0037 msg = sprintf(<span class="string">'...no input stat struct.\n'</span>);0038 error(msg);0039 <span class="keyword">end</span>0040 <span class="keyword">if</span> ~isfield(stat,<span class="string">'function'</span>),0041 fprintf(<span class="string">'...no input stat.function, using defaults.\n'</span>);0042 stat.function = {<span class="string">'mean'</span>,<span class="string">'std'</span>,<span class="string">'min'</span>,<span class="string">'max'</span>,<span class="string">'median'</span>,<span class="string">'sum'</span>};0043 <span class="keyword">elseif</span> isempty(stat.function),0044 fprintf(<span class="string">'...empty input stat.function, using defaults.\n'</span>);0045 stat.function = {<span class="string">'mean'</span>,<span class="string">'std'</span>,<span class="string">'min'</span>,<span class="string">'max'</span>,<span class="string">'median'</span>,<span class="string">'sum'</span>};0046 <span class="keyword">end</span>0047 0048 0049 stat.value = zeros(1,length(stat.function));0050 0051 <span class="keyword">for</span> i = 1:length(stat.function),0052 0053 tmp = feval(stat.function{i},stat.roi.value);0054 0055 <span class="keyword">while</span> length(tmp) > 1,0056 tmp = feval(stat.function{i},tmp);0057 <span class="keyword">end</span>0058 stat.value(i) = tmp;0059 0060 <span class="keyword">end</span> <span class="comment">% stat roi</span>0061 0062 stat0063 0064 <span class="keyword">return</span></pre></div><hr><address>Generated on Fri 21-May-2004 12:38:21 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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