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labourdette
2002 Oct 24
3
Function scale (PR#2209)
...column are not divided by standard error,
but divided by sqrt (1/(n-1) sum Xi^2 )
Example:
> l<- c(1,2,3)
> scale(l,F,T)
[,1]
[1,] 0.3779645
[2,] 0.7559289
[3,] 1.1338934
attr(,"scaled:scale")
[1] 2.645751
2.645751 = sqrt( 1/2 * (1+4+9) )
Antoine Lucas & Aymeric Labourdette
--
Antoine Lucas
INRA, Unité de biométrie et | Tel 05 61 28 53 34
intelligence artificielle | Fax 05 61 28 53 35
http://genopole.toulouse.inra.fr/~lucas
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