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

figureMATLABplotsavefigstrings

FILE_NAME = '1.A.A';
figure('Name', 'Figure 1')
plot(X, Y, 'LineWidth', 1)
title('FILE %s: X vs Y (dB Mag)', FILE_NAME)
savefig('FILE %s: X vs Y.fig', FILE_NAME)

I have a large number of figures I'm plotting, so

I want to designate the variable FILE_NAME, and save the figures in my Current Folder.

Currently, I'm getting an error, "Incorrect number of input arguments"

Best Answer

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.)

Related Solutions

MATLAB: How to assign names to save different figures

I think that the problem is with the inner for loop. The code seems to know already about the number of figures that it has to write to file from the figures list

 for k=(n+1):(n+numel(figures))
    baseFileName = sprintf('figure_%d.tif',k);
    fullFileName = fullfile(folder_name,baseFileName);
    % etc.

(Is this array initialized with something like figures = findobj('Type','figure'), and so contains all the handles to the open figures?)

So we have the new file name and the figure, but then the following call is made to get all objects and descendants associated with gcf, the "current figure"

 figlist=findobj(gcf);

Then the code iterates on the length of this object, writing each element in the list to the same output file. And this happens repeatedly since for every k we compute figlist=findobj(gcf); against the same current figure.

I think that all you need to do is remove the inner for loop and have something more like

 i=1;  % to access the ith element of figures
 for k=(n+1):(n+numel(figures))
    baseFileName = sprintf('figure_%d.tif',k);
    fullFileName = fullfile(folder_name,baseFileName);
    saveas(figures(i),fullFileName); 
    i = i+1; % increment
 end

The above assumes that figure is an array of all figure handles that you want to save to file.

MATLAB: How to save multiple figures with partly same variable name

Use sprintf:

 name = 'Picture';
 fnm = sprintf('Peaks_%s.fig',name);
 savefig(fnm,...)
 fnm = sprintf('scatterbla_%s.fig',name);
 savefig(fnm,...)

Best Answer

Related Solutions

MATLAB: How to assign names to save different figures

MATLAB: How to save multiple figures with partly same variable name

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