MATLAB: About color of multi curve

about color of multi curve

Hi,

I want to change color of curves automatically

for i=1:3
plot(x,y,'color');hold on;
end
color=b,r,k (blue, red, black) with curve (i=1, 2, 3)

Can you help?

Best Answer

colors = {'b', 'r', 'k'};
for i=1:3
  plot(x, y, colors{i});hold on;
end

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MATLAB: Graphing colors

You can use the few matlab built in colors ('red','green,'blue,'black','white','cyan','magenta','yellow'),

plot(...,'color','green',...)

but you could also just declare a variable that is that vector, i.e.

g = [0 0 1]
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MATLAB: Multi-Line Colors in 2014

Thanks all for your help. For anyone who wants to do this in future:

I finally got the answer by email from Claudette at Mathworks Documentation.

    set(gca,'ColorOrderIndex',1)

will reset the colour order, so subsequent plot calls will use the same colour set.

So:

   % make up some data
   X1 = rand(5,3);
   X2 = X1+rand(5,3)*0.1;
   plot(X1);     % draw dataset 1
   hold on;
   set(gca,'ColorOrderIndex',1)
   plot(X2,':'); % compare with corresponding dataset 2 
   hold off;

will produce comparable solid and dotted lines.

It can be found in the online docs at http://www.mathworks.com/help/matlab/ref/axes-properties.html#prop_ColorOrderIndex - and she will update the page http://uk.mathworks.com/help/matlab/graphics_transition/why-are-plot-lines-different-colors.html with an example.

Best Answer

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MATLAB: Graphing colors

MATLAB: Multi-Line Colors in 2014

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