Change plotyy axis properties

I have a .fig file that was generated from using the plotyy function. I now have to change the tick marks and the label font sizes, but every time I use the get(gca...) function, It only gets one of the plots and not the other. Anyone out there know a solution to my problem? Thanks in advance.

Answer 1

[Andrew Reibold]

Click the plot that you want to change first.

gca selects the most recently 'active' one. Clicking one will make it the 'active' one

[Franco]

Im not sure how to click on the different plots. Suggestions?

[Andrew Reibold]

I suggest using the mouse xD

You can also set it to a 'handle' if thats the correct term.

do like

   hh=plot(....)

then instead of gca try

set(hh, ...)

So what is it, is it two plots on one axes? I'm not sure I fully understand the issue also.

Also, if you click the 'arrow' mouse cursor thing in the figure menu, then double click on lines, tick marks, etc, you can change lots of properties!

[Franco]

This is what I mean. I need to change the font sizes for this figure.

Answer 2

[Star Strider]

This will get you both sets of y-variables:

hd = get(gcf, 'Children');
yd1 = get(get(hd(1), 'Children'), 'YData');     % ‘Right’ 'YData'
yd2 = get(get(hd(2), 'Children'), 'YData');     % ‘Left’ 'YData'
ytl1 = get(hd(1), 'YTickLabel');     % ‘Right’ 'YTickLabel'
ytl2 = get(hd(2), 'YTickLabel');     % ‘Left’ 'YTickLabel'

To change the 'YTick', 'YTickLabel' values and properties, replace get with set.

[Franco]

Try it on this

[Star Strider]

I was actually able to get this code to work with ‘PropFig27.fig’ but I had to restart my MATLAB session to do it. (I had attempted to do something else with it to get some other values and somehow screwed up the ‘hg’ properties. Fixed now.)

This worked:

openfig('PropFig27.fig')
hd = get(gcf, 'Children');
ytl1 = get(hd(2), 'YTickLabel');     % ‘Right’ 'YTickLabel'
ytl2 = get(hd(3), 'YTickLabel');     % ‘Left’ 'YTickLabel'

and produced (temporarily removing the semicolons):

ytl1 =

80     
82.2222
84.4444
86.6667
88.8889
91.1111
93.3333
95.5556
97.7778
100    

ytl2 =

0   
111 
222 
333 
444 
555 
666 
777 
888 
1000

You should be able to do similar commands with set to change them.

Answer 3

[Image Analyst]

You can get both handles at once when you call plotyy. Then just set the font of whatever you want:

workspace; % Make sure workspace panel is showing.
x = 1 : 10;
y1 = 1:10
y2 = 3:12;
bothHandles = plotyy(x, y1, x, y2)  % Get both handles in one call.
% Set font on the left y axis.
set(bothHandles(1), 'FontSize', 8);
% Set font on the right y axis.
set(bothHandles(2), 'FontSize', 25);

[Franco]

That only works when you are making the figure. I already have the figure file an dI need to change the font sizes.

[Image Analyst]

Yes and that is the most efficient place to set the font - when you are creating the figure, not after the fact when you have lost information on it and have to do some code gymnastics to recover it.