How can I put a string variable into a Figure Title?
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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"
2 Comments
Joe_Z
on 14 May 2020
I think you forgot the sprintf() within the title() function. title() only takes a single text input argument (or Name:Value Pairs) which is why it is throwing that error. Try:
figure('Name', 'Figure 1')
plot(X, Y, 'LineWidth', 1)
title(sprintf('FILE %s: X vs Y (dB Mag)', FILE_NAME))
savefig(sprintf('FILE %s: X vs Y.fig', FILE_NAME))
Image Analyst
on 14 May 2020
I'd recommend saving them as PNG files with exportgraphics() or saveas() or export_fig().
Accepted Answer
Star Strider
on 14 May 2020
You’re almost there!
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.)
.
4 Comments
Star Strider
on 14 May 2020
My pleasure!
If my Answer helped you solve your problem, please Accept it!
.
More Answers (1)
Image Analyst
on 14 May 2020
Try
FILE_NAME = '1.A.A';
hFig = figure; % Bring up a new figure, or hFig = gcf to get an existing figure handle.
hFig.Name = sprintf('%s', FILE_NAME); % or hFig.Name = 'Figure 1' or whatever
hFig.NumberTitle = 'off'; % No "Figure 1" in the title bar.
hFig.WindowState = 'maximized' % Maximize the figure window.
% Plot something...
plot(X, Y, 'LineWidth', 1)
caption = sprintf('FILE %s: X vs Y (dB Mag)', FILE_NAME);
title(caption, 'FontSize', 20);
% Prepare PNG filename:
baseFileName = sprintf('%s.png', FILE_NAME); % Tack on png extension so oeprating system will recognize it.
% folder can be pwd or wherever you want it to go.
folder = pwd; % current folder, or use 'D:\my images\' or wherever...
fullFileName = fullfile(folder, baseFileName);
% Save image to disk:
saveas(hFig, fullFileName); % Save to disk as a PNG format image.
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