Plotting different variable sets on same graph

I have two sets of data; Current1 (x), Power1 (y) & Current2 (x), Power2 (y). Matlab will only plot the first set of variables and not the second set. I believe it has something to do with two different x axis. How do I combine these two into one plot? I want to compare the trends since it is the same type of data in each set.

plot(Current1, Power1,'r')

plot(Current2, Power2,'b')

[Ankit]

hold

Retain current plot when adding new plots

plot(Current1, Power1,'r');hold on
plot(Current2, Power2,'b');

Answer 1

[Voss]

plot(Current1, Power1,'r')
hold on
plot(Current2, Power2,'b')

[notalwayssure]

Thanks