How can I combine three figures into one and save as single image?

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MUHAMED JISHAD T K 2021-3-11

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https://ww2.mathworks.cn/matlabcentral/answers/769172-how-can-i-combine-three-figures-into-one-and-save-as-single-image

评论： MUHAMED JISHAD T K 2021-3-11

I am trying to plot spectrogram of three separate signals. I need it in a single image file without axes and colorbar, one figure stacked above the other (no blank space in between). I have to generate a large number of such figures for feeding to a transfer learning algorithm for classification.

I need help with combining the figures.

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Jorg Woehl 2021-3-11

在 MATLAB Online 中打开

Have you looked at nexttile? The following will create three vertically stacked plots... but with (minimal) blank space in between:

t = tiledlayout(3, 1, 'TileSpacing', 'none');
nexttile
% first plot
axis off
nexttile
% second plot
axis off
nexttile
% third plot
axis off

Alternatively, you could use subplot with the Position property, which gives you more control:

subplot('Position', [0 0 1 0.33]) 
% first plot
axis off
subplot('Position', [0 0.33 1 0.33])
% second plot
axis off
subplot('Position', [0 0.66 1 0.33])
% third plot
axis off