MATLAB: Saving a figure as a png with a specific name from predefined variable

MATLABplottingpngsaveas

I would like to save a figure as a png with the name as a value that I had already predefined in the code. The code below is not calling that value. My variable that I would like to use as the name of the png is defined as plottitle.

I keep getting an error that says invalid filename.

plottitle is my variable

saveas(gcf,plottitle.bmp)

Output: Error using saveas (line 96)

Invalid filename.

Best Answer

With some guessing:

saveas(gcf, [plottitle, '.bmp'])

Related Solutions

MATLAB: Does the SAVEAS command not append the correct file extension when the file name contains a period

The command

SAVEAS(H,'FILENAME','FORMAT')

saves the figure specified by handle H to file name FILENAME. When FILENAME does not contain an extension (it has no periods in it), an extension corresponding to FORMAT is appended to the file name.

If FILENAME contains periods in it, MATLAB interprets this as an extension. The FORMAT option overrides whatever extension is specified by FILENAME, but the correct extension is not appended to FILENAME. If desired, the correct file extension must be explicitly defined in the filename.

For example, see the code below:

plot(1:10)
% the following creates a TIF file test1.tif
saveas(gcf, 'test1', 'tif')
% the following creates a TIF file test2.123
saveas(gcf, 'test2.123', 'tif')
% the follwoing creates a TIF file test3.123.tif
saveas(gcf, 'test3.123.tif', 'tif')

MATLAB: Saving with filename from excel

It does not work because the string contained in fname is wrapped inside a cell.

You must convert the cell to the data type contained within it.

Use:

 saveas(gcf,cell2mat(fname),'jpg')

Best Answer

Related Solutions

MATLAB: Does the SAVEAS command not append the correct file extension when the file name contains a period

MATLAB: Saving with filename from excel

Related Question