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Asked by Bob Choy
on 18 Nov 2012

I have a graph with 18 horizontal lines, I need to first 6 lines to be colored magenta, the following 6 to be cyan and the last 6 to be red. Then I want to add a small label to that graph saying something like [0-6 = A], [6-12 = B] and [12-18 = C].

Is this possible?

Thank you.

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Answer by Image Analyst
on 18 Nov 2012

Yes. Use the 'Color' option in line()

x1 = 0; x2 = 20;

for y = 1 : 6 line([x1 x2], [y y], 'Color', 'm'); hold on; end for y = 7 : 12 line([x1 x2], [y y], 'Color', 'c'); end for y = 13 : 18 line([x1 x2], [y y], 'Color', 'r'); end

Bob Choy
on 18 Nov 2012

Can you please elaborate? More especifically, what should I be doing? What is x1 and x2?

Walter Roberson
on 18 Nov 2012

The above *is* fairly specific. line() is a MATLAB plotting call. Calling it with the parameter/value pairs shown will give you magenta or cyan or read lines.

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