Assign different colors to multiple plots without loop

2018 12 8
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更新时间：2018 12 8
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I have one array x and a multi-column array Y and would like to plot all Y#s on the same diagram against X and assign each plot a different color, coming from the color array named ColorSpec (e.g. ColorSpec=[0 0 0; 1 0 0, ...]). Although using a loop is always an option but since this will happen multiple times in the code I would like to avoid a loop for brevity. Is this possible?

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the cyclist
the cyclist 2018-12-8

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Here is one way:
ColorSpec = [0 0 0;
1 0 0;
0 1 0;
0 0 1];
% Pretend data
x = sort(rand(3,1));
y = rand(3,4);
figure
ax = axes;
ax.ColorOrder = ColorSpec;
ax.NextPlot = 'add';
plot(x,y)

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Saeid
Saeid 2018-12-8
By the way, what if the number of the curves changes, meaning that we do not know in advance how many colors will be used in the final plot? I can extend the number of colors in ColorSpec to the maximum foreseeable number.
the cyclist
the cyclist 2018-12-8
It is OK if ColorSpec has more rows than lines in the plot. The plot will just use the first rows as needed.
It is also OK if ColorSpec has fewer rows than lines in the plot. The plot will "recycle" colors from the beginning again.
Saeid
Saeid 2018-12-8
Oh, I didn't know that. That's pretty cool, thanks again!

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