Combine two existing Matlab figs, into one figure with two y axes (keeping the respective axes titles and units)

Hi, I have two Matlab figs, although not the original data in a *.mat file, which share the same 'x' axis, but not 'y' (one curve in each figure). I wish to combine Fig. 2 into Fig, 1, but have two y axes, with the original axis titles and units. I also wish to keep the original symbols and the same color map for the curves from the two pictures. What is the easiest way to do that?

Thank you.

[dpb]

Never tried the specific operation, but see copyobj example for the basic idea.

You'll have to create the new figure handle and the two axes handles as targets; how much of the details will get carried over as far as colors, etc., you'll just have to see.

If you have .fig files in the .mat file; the data is embedded in the figure so at worst you can simply retrieve what you need and create a new plot/figure via directly calling yyaxis

[Erez]

My version of Matlab it seems, 2017b, does not recognize yyplot. I've tried running exactly the example I've found in the online documentation, but I get things like``Undefined function 'yyaxis' for input arguments of type 'char'.". What do you think?

[dpb]

I think I mistyped/misnamed the new world replacement for the deprecated plotyy :)

 -- it's |yyaxis| instead.  Sorry...

ADDENDUM

I did just try a 'spearmint; took the example for two axes and created two figures instead of the L/R axes. Then with some rigamarole to get all the necessary handles to the lines that are children of their respective axes,

yyaxis left
hAxL=gca;
copyobj(hL1,hAxL)
yyaxis right
hAxR=gca;
copyobj(hL2,hAxR)

did bring over the line colors, markers, etc., ... I didn't experiment with the titles and all, but the basic operations seems to work ok.

[Erez]

Thanks a lot, but unfortunately it still doesn't work. Ok, I've copied your exact code. I also had a mistake, I am using Matlab 2014b, so maybe this version is not familiar with this syntax. The error message is:

    "Undefined function 'yyaxis' for input arguments of
    type 'char'.
    Did you mean:
    >> axis left "

Perhaps there is a way to download the function `yyaxis' and add it into my script?