Have you read the manual page for prcomp()? ?prcomp
Look at the examples, particularly the use of the scale.= argument. ------------------------------------- David L Carlson Department of Anthropology Texas A&M University College Station, TX 77840-4352 -----Original Message----- From: R-help [mailto:r-help-boun...@r-project.org] On Behalf Of T.Riedle Sent: Wednesday, November 9, 2016 6:46 AM To: R-help@r-project.org Subject: [R] prcomp() on correlation matrix Dear R users, I am trying to do a Principal Components Analysis using the prcomp() function based on the correlation matrix. How can I determine to calculate PCA on a correlation or covariance matrix using prcomp()? Thanks in advance. [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
