How to use same colors inn all figures when making several figures with a loop

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Karl
Karl 2013-5-13
I have created a loop that makes several figures. When I apply "rand(1,3)) in the loop below, each figure gets different colors. Do you know how I can change the loop below to so that the colors are the same in every figure?
Alder = {'<20', '2029','3039','4049','5059','6069','>70', 'all'};
Vars = {gjG, gjR, gjI, gjDI, gjBV, GtoDI, GtoBV, RtoDIplusR, ItoG, RtoG, GtoI};
Vars2 = {'gjG', 'gjR', 'gjI', 'gjDI', 'gjBV', 'GtoDI', 'GtoBV', 'RtoDIplusR', 'ItoG', 'RtoG', 'GtoI'};
Aar = {'2011', '2012', '2013_1', '2014_1', '2014_s2', '2014_s5'};
n = length(Vars);
nAar = length(Aar);
for iVars = 1:n;
aVars = Vars{iVars};
figure,title(Vars2{iVars});
hold on
for iAar = 1:nAar
plot(aVars(11,:,iAar), 'color', rand(1,3));
set(gca, 'XTickLabel',Alder)
legend((Aar),'location','NE','FontSize',10);
end
hold off
end

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采纳的回答

the cyclist
the cyclist 2013-5-13
This line sets the color:
plot(aVars(11,:,iAar), 'color', rand(1,3))
You could change that to
plot(aVars(11,:,iAar), 'color', 'r')
for red, or
plot(aVars(11,:,iAar), 'color', [r g b])
where r,g, and b are numeric values to give any RGB color.
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Karl
Karl 2013-5-13
What you suggested in the first post worked. Thanks! You are right about the colors.Not much difference!
the cyclist
the cyclist 2013-5-13
You can try setting different random seeds at the beginning of your code, to see if you can find a better array of colors.
If you don't want to use random colors, you can try the approach that Image Analyst had in his answer, which is similar to my answer but takes advantage of built-in MATLAB color maps.

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更多回答（2 个）

Azzi Abdelmalek
Azzi Abdelmalek 2013-5-13
Use
plot(aVars(11,:,iAar), 'color', [1 0 1]);
  1 个评论
Karl
Karl 2013-5-13
What you suggest give the same color for alle graphs in the same figure. I want different colors for each label in the figures, but that the labels in the different figures have the same colors. So "2011" should have a different color from "2012" ion each figure, and the "2011"-color should be equall accross all figures.

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Image Analyst
Image Analyst 2013-5-13
Make up a table of colors. It should be N rows (for N colors that you want to use) by 3 columns (a red, a green, and a blue value). The numbers should go from (0,0,0) for black up to (1,1,1) for white. If you want, you can use some built in colormaps, like lines:
numberOfColors = 15; % Whatever you want.
myColorMap = lines(numberOfColors); % Use lines(), jet(), winter(), or whatever.
Whenever you want to plot the curve in the k'th color, you just do
plot(x, y, 'Color', myColorMap(k, :));
Do this for every axes that you want to plot in.

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