How to plot rows of two matrices in different colors without for loop

Hey guys, I need your help. So I got two matrices x and y. They are currently 4135*1441 large. So what I want to do is basically something like this:

figure
  cc = jet(1441)
plot(x(1,:),y(1,:),'color',cc(1,:))
hold on
  for i = 1: 1441
  plot(x(i,:),y(i,:),'color',cc(i,:))
  end
hold off

but without the for loop. Since the matrices are pretty large it takes forever to plot the picture. Would removing the for loop change the runtime, or will it take forever anyway ?

Answer 1

[dpb]

Matlab is column-major...

plot(x.',y.')

will treat each column as an observation automagically. Colors will cycle through the default set so with so many lines you'll have many sets the same (but with so many lines/data points on a single plot, it'll probably just be a solid blob anyway, so may not matter much :) ).