Want to create colors depending on the number of columns i got in my X

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Tiago Dias 2018-11-26

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编辑： Jan 2018-11-27

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Hello, i want to plot each column, and i want to associate each column with a color but automaticly.

X = [1:26]';
Y = [1:26]';
[n,m] = size(X);
rows = 3;
columns = ceil(n/rows);
extra_row = columns * rows;
X(n+1:extra_row) = NaN;
X_new = reshape(X,rows,columns)

So, if i put a different numbe ron "ROWS" my "X_NEW" will have more or less columns.

Question -> How to create a vector of colors or string of colors depending on the number of columns of X_new?

Thanks for your time

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采纳的回答

Jan 2018-11-26

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What about:

CMap = parula(rows)

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Tiago Dias 2018-11-27

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oh ok. I place with a vector

plot(1:10, rand(1,10), '*', 'Color', [CMap(k,1) CMap(k,2) CMap(k,3)]);

thanks!

Jan 2018-11-27

编辑：Jan 2018-11-27

CMap(k, :) is the abbreviation for CMap(k, 1:3), which is exactly the same as [CMap(k,1) CMap(k,2) CMap(k,3)], so I'd prefer the leaner notation.

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