change the y-axis value size

I want to change the size of y-axis values plotted with plotyy function. I attached the figure here. how can I do that?

Answer 1

[dpb]

You didn't show the code used to create the plot but the answer in general is to first save the handles to the two axes so you can subsequently modify them...

hAx=plotyy(x1,y1,x2,y2);           % a 2-axes plot; save axes handles
ylim(hAx(1),[LftLoY LftHiY])       % invoke ylim() on LH axes
ylim(hAx(2),[RtLoY RtHiY])         % and RH

If you have more recent release, TMW recommends yyplot instead; it makes control of such elements a little more easily managed...

[sahar]

I want to change the font size of the right y axis not its range

[dpb]

Ah, you didn't say that!!!... :)

set(hAx(2),'fontsize',YOURNEWFONTSIZE)