Hi, I want to plot 4 y-axes against x-axis. How do I plot it?

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Isa Isa
Isa Isa 2017-3-2
回答： Rik 2017-3-2
Hi, I want to plot 4 y-axes against x-axis. I want to put legend and colour. How do I plot it? Thanks Isa
  2 个评论
Jos (10584)
Jos (10584) 2017-3-2
编辑：Jos (10584) 2017-3-2
Something like plotyy but then with four y-axes? Can you draw an example?
Isa Isa
Isa Isa 2017-3-2
Like x = linspace(0,5); y1 = sin(x); y2 = sin(5*x); y3= sin(10*x); y4=sin(15*x); Plot y1,y2,y3 and y4 against x

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回答（2 个）

Rik
Rik 2017-3-2
Another interpretation of your question results in this solution:
x = linspace(0,2*pi); y1 = sin(x); y2 = sin(5*x); y3= sin(10*x); y4=sin(15*x);
plot(x,y1,'b',x,y2,'r',x,y3,'c',x,y4,'k')
legend({'sine of x','sine of 5x','sine of 10x','sine of 15x'})
Meade
Meade 2017-3-2
Check out the excellent addaxis function by Harry Lee.
It let's you add n y-axes to any plot, plus has lots of extended functionality for redrawing, adding additional lines after plotting, etc, etc.

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