MATLAB: How to input multiple lines on a graph

Question

I imported my data from excel, and i want to compare to different y values on a line graph. How to i add the second y value

Answer 1

In order to place mutliple plot on same figure we can use hold on functionality

As a example

x = linspace(-pi,pi);
y1 = sin(x);
y2 = cos(x);
plot(x,y1); % first line
hold on 
plot(x,y2); % second line
hold off