MATLAB Answers

How to assign a different color to lines being plotted in a loop?

5 views (last 30 days)
farzad on 8 May 2020
Edited: Akihumi on 12 May 2020
Hi All
I am plotting n different lines in one single plot. but what I need it to assign a different color ( even random) for each iteration. and then use it as a Legend.
How do I do this ?

  1 Comment

Stephen Cobeldick
Stephen Cobeldick on 12 May 2020
The accepted answer states that line color is determined by the lines colormap. This is not correct.
Line colors are determined by the axes ColorOrder property:
The lines colormap is also defined in terms of the axes ColorOrder.

Sign in to comment.

Accepted Answer

Akihumi on 8 May 2020
Edited: Akihumi on 12 May 2020
* Edits: Sorry for the wrong information about the default line color.
Otherwise, you can try
hold on
randColor = rand(10,3);
for i = 1:10
But the color would be ugly. Instead of rand, you can try other available colormap. For example
hold on
cm = parula(10);
for i = 1:10
plot(x(:,i),y(:,i),'Color', cm(i,:));

More Answers (1)

Isiah Pham
Isiah Pham on 8 May 2020
Edited: Isiah Pham on 12 May 2020
You can make a cell array for each color you want and the pull from it
colors = {['red'],['blue']}
for rep = 1:2
plot((x,rep.*x), colors{rep})
This will plot two lines, the first red and the second blue


Sign in to comment.

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by