root/OptimizingMATLABCode/testFitEx/html/testFit.html @ 10
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--><title>testFit</title><meta name="generator" content="MATLAB 8.4"><link rel="schema.DC" href="http://purl.org/dc/elements/1.1/"><meta name="DC.date" content="2014-09-23"><meta name="DC.source" content="testFit.m"><style type="text/css">
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</style></head><body><div class="content"><h2>Contents</h2><div><ul><li><a href="#2">Example 2</a></li><li><a href="#3">Defaults</a></li><li><a href="#4">Finding Names of all Text Files in the ModelResults Directory</a></li><li><a href="#5">Reading, Averaging, and Fitting all Text Files</a></li><li><a href="#7">Read in the Relevant Model Data</a></li><li><a href="#8">Filter, Fit and Evaluate Spline on Model Data</a></li><li><a href="#9">Plot the Results</a></li><li><a href="#10">Output Spline Results to an Excel File</a></li></ul></div><pre class="codeinput"><span class="keyword">function</span> testFit(desiredTest,splineSample)
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</pre><h2>Example 2<a name="2"></a></h2><p>Input values desiredTest = 60, splineSample = 200;</p><p>Load in output of a desired model, fit, filter and evaluate a spline Output written into an excel data file</p><h2>Defaults<a name="3"></a></h2><pre class="codeinput"><span class="keyword">if</span> ~nargin
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desiredTest = 60;
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splineSample = 200;
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<span class="keyword">end</span>
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</pre><h2>Finding Names of all Text Files in the ModelResults Directory<a name="4"></a></h2><pre class="codeinput">filexlsName = <span class="string">'FinalResults.xls'</span>;
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dirName = fullfile(pwd, <span class="string">'ModelResults'</span>);
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modelFiles = dir(fullfile(dirName, [<span class="string">'*.'</span>, <span class="string">'txt'</span>]));
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<span class="keyword">if</span> isempty(modelFiles)
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error(<span class="string">'testFitEx:NoDataFiles'</span>, <span class="keyword">...</span>
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<span class="string">'No data files.\nRun "FileGenerator.m" in the ModelResults folder'</span>);
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<span class="keyword">else</span>
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numModels = length(modelFiles);
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<span class="keyword">end</span>
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disp(<span class="string">'Processing test results...'</span>);
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</pre><pre class="codeoutput">Processing test results...
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</pre><h2>Reading, Averaging, and Fitting all Text Files<a name="5"></a></h2><pre class="codeinput"><span class="keyword">for</span> id = 1:numModels
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</pre><h2>Read in the Relevant Model Data<a name="7"></a></h2><pre class="codeinput"> fileName = fullfile(dirName, modelFiles(id).name);
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[tmp, modelName] = fileparts(modelFiles(id).name);
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fid = fopen(fileName);
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<span class="comment">% Getting the number of timesteps from the header of the txt file</span>
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nTimes = textscan(fid, <span class="string">'%*s %d \n'</span>, 1);
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nTimes = nTimes{1};
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<span class="comment">% Read through models we don't want data from and keep resaving model</span>
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<span class="comment">% info into modelData until it gets to desiredModel</span>
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<span class="keyword">for</span> j = 1:desiredTest-1
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fgets(fid); <span class="comment">% read test header line</span>
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textscan(fid, <span class="string">'%*f %*f \n'</span>, nTimes); <span class="comment">% get model output data</span>
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<span class="keyword">end</span>
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fgets(fid); <span class="comment">% read test header line</span>
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modelData = textscan(fid, <span class="string">'%f %f \n'</span>, nTimes); <span class="comment">% get model output data</span>
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modelData = cell2mat(modelData);
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fclose(fid);
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</pre><h2>Filter, Fit and Evaluate Spline on Model Data<a name="8"></a></h2><pre class="codeinput"> nPoints = 10; <span class="comment">% setting number of points to average over</span>
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b = (1 / nPoints) * ones(1, nPoints); <span class="comment">% moving average over nPoints</span>
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filterData = filter(b, 1, modelData); <span class="comment">% create moving average</span>
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splineData = spline(filterData(:, 1), filterData(:, 2)); <span class="comment">% create spline</span>
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splineTime = linspace(0, filterData(end, 1), splineSample);
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finalData = ppval(splineData, splineTime); <span class="comment">% evaluate spline</span>
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</pre><h2>Plot the Results<a name="9"></a></h2><pre class="codeinput"> figure;
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subplot(2, 1, 1)
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plot(modelData(:, 1), modelData(:, 2));
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line(filterData(:, 1), filterData(:, 2), <span class="string">'Color'</span>, <span class="string">'r'</span>);
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title(<span class="string">'Original and Moving Average'</span>)
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subplot(2, 1, 2)
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plot(filterData(:, 1), filterData(:, 2));
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line(splineTime, finalData, <span class="string">'Color'</span>, <span class="string">'r'</span>, <span class="string">'Marker'</span>, <span class="string">'+'</span>);
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title(<span class="string">'Moving Average and Spline'</span>)
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<span class="comment">%saveas(gcf, fullfile('PlotFigs', [modelName, '.fig']));</span>
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</pre><img vspace="5" hspace="5" src="testFit_01.png" alt=""> <img vspace="5" hspace="5" src="testFit_02.png" alt=""> <img vspace="5" hspace="5" src="testFit_03.png" alt=""> <img vspace="5" hspace="5" src="testFit_04.png" alt=""> <img vspace="5" hspace="5" src="testFit_05.png" alt=""> <img vspace="5" hspace="5" src="testFit_06.png" alt=""> <img vspace="5" hspace="5" src="testFit_07.png" alt=""> <img vspace="5" hspace="5" src="testFit_08.png" alt=""> <img vspace="5" hspace="5" src="testFit_09.png" alt=""> <img vspace="5" hspace="5" src="testFit_10.png" alt=""> <h2>Output Spline Results to an Excel File<a name="10"></a></h2><pre class="codeinput"> xlsPlace = sprintf(<span class="string">'%c1:%c%d'</span>, <span class="string">'A'</span>+2*id-2, <span class="string">'A'</span>+2*id-1, splineSample);
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xlswrite(filexlsName, <span class="keyword">...</span>
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[{sprintf(<span class="string">'time%03d'</span>, id), sprintf(<span class="string">'data%03d'</span>, id)}; <span class="keyword">...</span>
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num2cell([splineTime; finalData]')], xlsPlace);
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</pre><pre class="codeinput"><span class="keyword">end</span>
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close <span class="string">all</span> <span class="comment">% close all figures</span>
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</pre><p class="footer">Copyright 2007-2013 The MathWorks, Inc.<br><a href="http://www.mathworks.com/products/matlab/">Published with MATLAB® R2015a</a><br></p></div><!--
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##### SOURCE BEGIN #####
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% Copyright 2007-2013 The MathWorks, Inc.
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function testFit(desiredTest,splineSample)
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%% Example 2
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% Input values desiredTest = 60, splineSample = 200;
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%
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% Load in output of a desired model, fit, filter and evaluate a spline
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% Output written into an excel data file
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%% Defaults
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if ~nargin
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desiredTest = 60;
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splineSample = 200;
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end
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%% Finding Names of all Text Files in the ModelResults Directory
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filexlsName = 'FinalResults.xls';
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dirName = fullfile(pwd, 'ModelResults');
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modelFiles = dir(fullfile(dirName, ['*.', 'txt']));
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if isempty(modelFiles)
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error('testFitEx:NoDataFiles', ...
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'No data files.\nRun "FileGenerator.m" in the ModelResults folder');
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else
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numModels = length(modelFiles);
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end
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disp('Processing test results...');
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%% Reading, Averaging, and Fitting all Text Files
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for id = 1:numModels
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%% Read in the Relevant Model Data
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fileName = fullfile(dirName, modelFiles(id).name);
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[tmp, modelName] = fileparts(modelFiles(id).name);
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fid = fopen(fileName);
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% Getting the number of timesteps from the header of the txt file
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nTimes = textscan(fid, '%*s %d \n', 1);
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nTimes = nTimes{1};
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% Read through models we don't want data from and keep resaving model
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% info into modelData until it gets to desiredModel
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for j = 1:desiredTest-1
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fgets(fid); % read test header line
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textscan(fid, '%*f %*f \n', nTimes); % get model output data
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end
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fgets(fid); % read test header line
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modelData = textscan(fid, '%f %f \n', nTimes); % get model output data
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modelData = cell2mat(modelData);
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fclose(fid);
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%% Filter, Fit and Evaluate Spline on Model Data
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nPoints = 10; % setting number of points to average over
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b = (1 / nPoints) * ones(1, nPoints); % moving average over nPoints
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filterData = filter(b, 1, modelData); % create moving average
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splineData = spline(filterData(:, 1), filterData(:, 2)); % create spline
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splineTime = linspace(0, filterData(end, 1), splineSample);
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finalData = ppval(splineData, splineTime); % evaluate spline
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%% Plot the Results
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figure;
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subplot(2, 1, 1)
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plot(modelData(:, 1), modelData(:, 2));
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line(filterData(:, 1), filterData(:, 2), 'Color', 'r');
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title('Original and Moving Average')
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subplot(2, 1, 2)
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plot(filterData(:, 1), filterData(:, 2));
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line(splineTime, finalData, 'Color', 'r', 'Marker', '+');
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title('Moving Average and Spline')
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%saveas(gcf, fullfile('PlotFigs', [modelName, '.fig']));
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%% Output Spline Results to an Excel File
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xlsPlace = sprintf('%c1:%c%d', 'A'+2*id-2, 'A'+2*id-1, splineSample);
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xlswrite(filexlsName, ...
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[{sprintf('time%03d', id), sprintf('data%03d', id)}; ...
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num2cell([splineTime; finalData]')], xlsPlace);
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end
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close all % close all figures
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##### SOURCE END #####
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--></body></html>
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