[R] normalizing data sets

Ben Bolker ben at zoo.ufl.edu
Tue Oct 15 15:29:06 CEST 2002


  ?scale

 (by the way, that's "principal" components analysis ...)


On Mon, 14 Oct 2002, Rishabh Gupta wrote:

> Hi,
>  Can someone tell me how to normalize a data set so that the mean of the set is 0 and the variance is 1. As I understand, when you
> calculate the principle components of a data set through correlation as
> < princomp( dataset,  cor=T ) >
> then a similar calculation is performed. I would like to know how I can perform such a calulation directly. Any help would be
> greatly appreciated.
> 
> Many Thanks
> 
> Rishabh
> 
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