1 개요[ | ]
- R prcomp()
R
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## the variances of the variables in the
## USArrests data vary by orders of magnitude, so scaling is appropriate
#prcomp(USArrests) # inappropriate
prcomp(USArrests, scale = TRUE)
## Standard deviations (1, .., p=4):
## [1] 1.5748783 0.9948694 0.5971291 0.4164494
##
## Rotation (n x k) = (4 x 4):
## PC1 PC2 PC3 PC4
## Murder -0.5358995 0.4181809 -0.3412327 0.64922780
## Assault -0.5831836 0.1879856 -0.2681484 -0.74340748
## UrbanPop -0.2781909 -0.8728062 -0.3780158 0.13387773
## Rape -0.5434321 -0.1673186 0.8177779 0.08902432
2 같이 보기[ | ]
3 참고[ | ]
편집자 Jmnote
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