how to use num2str on print?

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Beatriz Sanchez 2018-10-28

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评论： Beatriz Sanchez 2018-11-8

hello, so I'm trying to print an image, but this image run several times with different values of two parameters (alpha and p). What I want is that matlab print all of this images with their parameters values with different names. I tried to do this:

print (strcat('Densidades Promedio.', 'alpha='num2str (alpha),'. p='num2str(p)), '-dpng')

but then it gave me an error: "Unexpected MATLAB expression". Any idea about how to do it? thank you

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采纳的回答

Image Analyst 2018-10-28

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You don't have a comma before the num2str(). Anyway, try it like this (it's more robust):

baseFileName = sprintf('Densidades Promedio.alpha=%f. p=%f', alpha, p)
% What - no extension???
fullFileName = fullfile(pwd, baseFileName);
if exist(fullFileName, 'file')
  print(fullFileName);
else
  message = sprintf('File not found:\n%s', fullFileName);
  uiwait(warndlg(message));
end

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Image Analyst 2018-10-30

I didn't really look into the print part before, but what exactly are you trying to print()? I don't see a use case for print() in the help where it takes only a filename. Do you want to print the current figure? Try passing in a figure handle. Or you want to print something else?

Beatriz Sanchez 2018-11-8