MATLAB: I use MATLAB 2011. Related to the questions I asked yesterday. How to save plots and work space to a folder automatically that come in a loop.

srinath

I have about 900 data sets to be analysed and that can be done with single program. Using a loop for d=1:900 I'm able to do that. for d=1 the first data set is analysed and I get about 5 plots and a work space. Similarly for d=2 till d=900. I want to know if there is a code which saves the plots and work spaces to a folder after executing the program for each data set i.e., for each d=integer a separate folder having corresponding plots and work spaces. If it is possible also suggest me a way to name those folders differently so that they don't get replaced because of having the same name.

Best Answer

 for i = 1:n
  ... code
  filename = [somepath '\' somefilename num2str(i) '.png'];
  saveas(figure,filename)
  filename = [somepath '\' somefilename num2str(i) '.mat'];
  save(filename)
 end

Related Solutions

MATLAB: How to save multiple MATLAB figures automatically in program

Use savefig https://www.mathworks.com/help/matlab/ref/savefig.html

Note: You should save using the full file name, which includes the folder path AND file name. Otherwise, you cannot use your program if your current working directory is different.

FullFileName = fullfile(FilePath, FileName)

Here's an example.

%Example
FigH = figure; %If you have other figure handles, then specify
               %this when saving figures. Note: you can store
               %figure handles in a cell array or gobjects 
               %array, in case you need to loop through the saves.
               %EX: FigH{1} = figure. FigH{2} = figure.
AxH = axes;
X = 1:100;
Y = sin(X);
FileDir = pwd; %Replace with your folder
for j = 1:10
    LineH = plot(AxH, X, Y*j);
    FilePre = sprintf('%s-%d', 'MyFig', j);
    savefig(FigH, fullfile(FileDir, [FilePre '.fig']))
    print(FigH, fullfile(FileDir, [FilePre '.png']), '-r300', '-dpng')
    %Changing figure color
    LineH.Color = 'r';
    savefig(FigH, fullfile(FileDir, [FilePre 'red.fig']))
    print(FigH, fullfile(FileDir, [FilePre 'red.png']), '-r300', '-dpng')    
end

MATLAB: How to put a string variable into a Figure Title

You’re almost there!

Add a sprintf call and it does what you want:

title(sprintf('FILE %s: X vs Y (dB Mag)', FILE_NAME))

and:

savefig(sprintf('FILE %s: X vs Y.fig', FILE_NAME))

I tested the title call. Since I don’t want to write the file to my computer, I didn’t test the savefig call. It should work. (It would likely help to include the figure handle as the first argument in the savefig call, just to be certain it’s doing what you want it to, although that’s snot required.)

Best Answer

Related Solutions

MATLAB: How to save multiple MATLAB figures automatically in program

MATLAB: How to put a string variable into a Figure Title

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