Adding two axes to a graph - Error message

So I have two graphs I want to plot and overlay on each other but each has very different values so I'm trying to add another axis to it however I keep receiving the error message 'Undefined function 'addaxis' for input arguments of type 'double'.

Answer 1

[Orion]

Hi,

you can use the subplot function, so you can create two axes and plot one variable in each.

t = 0:.01:10;
subplot(2,1,1)
plot(t,cos(t));

subplot(2,1,2)
plot(t,exp(t));

or you can also use plotyy

plotyy(t,cos(t),t,exp(t))

Note : if you want to create a new axe then you have to use the command axes(), but then you need to specify the properties of your axes, which is a bit more complicated.