MATLAB: Distinct colors for plotting two columns of a single matrix

Question

I have vector called x(500,2). I plot(x) and I get a blue line for column 1 and a green line for column 2. I would like a red line for contrast purposes for column 2.

Answer 1

One of several ways:

x = rand(4,2);
h = plot(x);
set(h(1),'Color','b');
set(h(2),'Color','r');