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mypca
2011 Jun 30
2
sdev value returned by princomp function (used for PCA)
Dear all,
I have a question about the 'sdev' value returned by the princomp function (which does principal components analysis).
On the help page for princomp it says 'sdev' is 'the standard deviations of the principal components'.
However, when I calculate the principal components for the USArrests data set, I don't find this to be the case:
Here is how I