index to matrix columns

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laplace laplace
laplace laplace 2013-6-20
i want put indices to matrix columns. eg
i got 1 2 3 3 4 5 6 7 8
i want to assign indices to the column vectors [1:3:6] etc
and is there a way to put random indices? the way crossvalind command does? the problem with crossvalind is that it only accepts arrays not column vectors
any ideas?

回答(1 个)

the cyclist
the cyclist 2013-6-20
I think you can do what you want using the randsample() command.
doc randsample
for details.

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