how to save file with the given size

I want to save a plot using exportgraphics (or others) with the given size of let me say 4*2.25 inch.

https://www.mathworks.com/help/matlab/creating_plots/saving-your-work.html

looks complicated. Any simpler way?

Answer 1

[Matt J]

This looks like it covers what you're looking for,

https://www.mathworks.com/help/matlab/creating_plots/save-figure-at-specific-size-and-resolution.html

[alpedhuez]

Yes this is what I meant. Does one need to set 'tile'? Why is it that one cannot set as a parameter of exportgraphics?

[Matt J]

It's a new Matlab feature and I'm not completely familiar with it. However, the tiling seems to be a way to deal with figure subplots. If you are trying to export an individual subplot, you need some mechanism for specifying its physical size and boundaries within the figure.