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How to permute the columns in a matrix in random way?

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kortas manel
kortas manel 2016-12-6
评论： ghali ahmed 2017-12-25
Hi, How to permute the columns in a matrix in randomly without changing its size ??

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KSSV
KSSV 2016-12-6
k = rand(100) ;
ny =size(k,2) ;
shuffle = randsample(1:ny,ny) ;
k_shuffle = k(:,shuffle) ;

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Daniel Morais
Daniel Morais 2017-3-21
Utilize x = x( : , randperm(c)), onde x é a matriz e c o número de colunas de x. O mesmo vale para a permutação de linhas: x = x( randperm(l) , : ) onde l é o número de linhas.

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