[R] Break into Parts

[Uwe Ligges]

sumanta basak wrote:

> Hi R-Experts,
> 
> I have a vector of length 72. I want to break it into 12 parts and want to take standerd deviation of each group. Please help me in this regard.

x <- 1:72
apply(matrix(x, ncol=12), 2, sd)

Uwe Ligges



> Thanks,
> Sumanta.
> 
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