How to plot a graph for three variables?

Hi,

I have three variables x,y1 and y2. I would like to plot a graph with x axis and two y axis as y1 and y2. How to do this?please reply. Thanks.

Answer 1

[Ali Isik]

My solution is using both left and right of x axis to plot y axises. To do it, you should use plotyy() function, Here is an example code;

x = 0:0.01:20;
y1 = 200*exp(-0.05*x).*sin(x);
y2 = 0.8*exp(-0.5*x).*sin(10*x);
plotyy(x,y1,x,y2);