How standardization happening in SAS while doing PCA?

[sdhilip]

I am doing PCA in SAS guide. Just wanted to know the following?

Was standardize not required in SAS while performing PCA? As it directly calculates the correlation matrix when I run PCA ( proc princomp)

Kindly advise.

[WarrenKuhfeld · Accepted solution]

Yes, Proc PrinComp can create a correlation matrix from raw data, so you do not need to standardize the data first.

[sdhilip]

Thanks a lot.