Using repmat command to create cell array

Question

Luffy 2012-7-7

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/43001-using-repmat-command-to-create-cell-array

 I want to create a cell array with a repeating pattern of rgb colors of size n where n is a variable that is determined on the run,
 So,I've tried this,
 repmat({'red','blue','green','black','cyan','magenta','yellow'}, 1, n);
 But this generates array of size 7*n, is there a way to delete those extra values/any other function that does this.

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Answer 1

Walter Roberson 2012-7-7

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https://ww2.mathworks.cn/matlabcentral/answers/43001-using-repmat-command-to-create-cell-array#answer_52850

在 MATLAB Online 中打开

T = {'red','blue','green','black','cyan','magenta','yellow'};
T(1 + mod( (1:n)-1, length(T) ) )

You could repmat n/7 times but you would have to take precautions in case n was not exactly divisible by 7, and you would have to add on the fractional copy to fill out from the full cycle to n.