i got a 3x50 matrix. i would like to obtain the 50 3x1 column vectors and assign to them indices using the crossvalind command seen above
Indices = crossvalind('Kfold',N, 10);
so lets hypotheticaly say that i had a 3x3 matrix named "input" :
input=[1 2 3;4 5 6;7 8 9]
how can I imply an index generation for the vector columns of my "input" matrix using crossvalind?
A=[1;4;7]
B=[2;5;9]
C=[3;6;9]
**the reason i wanna do it is so i can after apply cross validation while having as train/test set these column vectors
