how do i change color of the y-axes made by plotyy?

Question

Rory Staunton 2011-5-22

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此问题的直接链接

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评论： Sharath Nagaraju 2021-2-14

I am trying to make the color of the left Y axis red and the color of the right Y axis blue. I can't figure out the right syntax.

Thanks in advance.

A snip of the code I have is below:

    close;
         % plot F23 vs. D in figure gcf       
         [AX,H1,H2]=plotyy(Dcurve,F23curve,W,V,'plot');
         AX
         set(gcf,'Position',[500,500,900,500]); 
         title('Click on all the discontinuities and then hit Return key');
         set(get(AX(1),'Ylabel'),'String','Force^(2/3) [N^(2/3)]');
  % ? %  set(get(AX(1),'color'),'red');
         set(get(AX(2),'Ylabel'),'String','Force [N]');
  % ? %  set(get(AX(2),'color'),'blue');
         xlabel('Indentation depth [m]');
         set(H1,'LineStyle','-');
         set(H1,'color','red');
         set(H2,'LineStyle','-');
         set(H2,'color','blue');
         hold on
         % user double click on all discontinuities and press enter  
         [xm,ym]=ginput;

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Answer 1

Matt Fig 2011-5-22

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An example:

x = 0:0.01:20;
y1 = 200*exp(-0.05*x).*sin(x);
y2 = 0.8*exp(-0.5*x).*sin(10*x);
[AX,H1,H2] = plotyy(x,y1,x,y2,'plot');
set(AX,{'ycolor'},{'r';'b'})  % Left color red, right color blue...

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Karen Henneke 2017-2-25

It sure would be nice if matlab would go back to help as they used to do it 10 or so years ago---one could find what they needed easily---now it is hard to find anything you need in matlab help

Timothy Reilly 2019-7-10

I agree. Help is getting to be a bubbling swamp like Microsoft help.

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Answer 2

Alejandro 2015-4-4

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I'm using this:

% removing ticks and everything else
% for x
set(gca,'XTickLabel',[])
set(gca,'XTick',[])
set(gca,'xcolor','w') 
% for y
set(gca,'YTickLabel',[])
set(gca,'YTick',[])
set(gca,'ycolor','w') 
% for z
set(gca,'ZTickLabel',[])
set(gca,'ZTick',[])
set(gca,'zcolor','w')

seems that it works pretty well, leaving just the with box in the background.

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Sara Anthony 2019-7-12

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I know this is really old, but I wanted to leave a comment that might help someone else. Alejandro's answer works the best for me. However, it's likely because I'm already using that format for the rest of my code:

yyaxis left
errorbar(Wr2IsotDateNum(1:22,1),Wr2D18O(1:22,1),ErrWr2D18O(1:22),'*--k')
ylim([-8.6 -7.5])
ytickformat('%.1f')
set(gca,'ycolor','k')
yyaxis right
plot(W2DateNum(22468:22598,1),M5Wr2C,'b')
set(gca,'ycolor','b')
ylim([0.64 0.7])
ytickformat('%.2f')