code to set..
how to set graph size
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Soni huu ，2013-2-28
编辑： Amirhossein Sadeghi Manesh ，2021-7-22
how to set my graphic size to (w:h=550:400) now my graph size is 560:420 (automatic)
[ day_number, daily_rain ] = DailyRain( RainData, 2010, 1);
andemande = plot( day_number, daily_rain,'-ok' );
day_numbermax = max(day_number);
day_numbermin = min(day_number);
ylabel('Akumulasi Curah Hujan (mm)')
Azzi Abdelmalek 2013-2-28
编辑：MathWorks Support Team 2021-3-16
Set the ‘Position’ property on the current figure (gcf). Specify the position as a vector of the form “[x0 y0 width height]”, where “x0” and “y0” define the distance from the lower-left corner of the screen to the lower-left corner of the figure. By default, the position is in pixels.
You can specify other units (inches, centimeters, normalized, points, or characters). For example:
You can also save a handle to your figure and set the Position property using dot notation:
f = figure;
f.Position = [10 10 550 400];
Amirhossein Sadeghi Manesh 2021-7-22
编辑：Amirhossein Sadeghi Manesh 2021-7-22
Resizing the figure is mentioned at Matlab's documentation.
Scroll down to the Change Figure Size section.
If you hadn't assigned a name for your figure, then use gcf (cf in gcf stands for current figure).
And put these two lines before your plot of interest.
If your aim is to just change the width and height of your figure as your question sounds like that, then you don't need to change the first and second entries of position. The first two entries are about the position of the figure window in your screen which you can drag and drop that window and has no effect on the size of the figure (and thus no effect on what you put into your paper/book ^_^).
Find more on Specifying Target for Graphics Output in Help Center and File Exchange
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