Trying to plot more than two graphs with two different scales onto a single plot

Question

ALEX 2015-3-2

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/181092-trying-to-plot-more-than-two-graphs-with-two-different-scales-onto-a-single-plot

回答： ALEX 2015-3-2

I would like to show the graphs of several signals from a group and a reference signal which has a completely different scale. I can use;

[ax,p1,p2]=plotyy(load(:,1),load(:,2),data(:,1),data(:,2))

the commonality between load and data is time

so, ylabel(ax(2),'Hits') ylabel(ax(1),'Displacement (in)') xlabel(ax(2),'Time (sec)')

and it works at showing two plots with two scales but I want to show more than these two plots but with the same two scales. It would greatly help reduce the number of graphs in my report and make more sense as a reader.

Any suggestions?

Thanks for your help

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Answer 1

Joseph Cheng 2015-3-2

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/181092-trying-to-plot-more-than-two-graphs-with-two-different-scales-onto-a-single-plot#answer_169838

在 MATLAB Online 中打开

you can use hold on to keep adding to these plots

x = 1:10 %time
for i =1:3
    y(i,:)=1*x+i;
    z(i,:)=2*x.^2+100+i;
end
[ax h1 h2]=plotyy(x,y(1,:),x,z(1,:));
ylabel(ax(2),'Hits');
ylabel(ax(1),'Displacement (in)');
xlabel(ax(2),'Time (sec)')
hold(ax(1),'on');
hold(ax(2),'on');
plot(ax(1),x,y(2,:))
plot(ax(2),x,z(2,:))
plot(ax(1),x,y(3,:))
plot(ax(2),x,z(3,:))