On Feb 27, 2012 at 9:30pm Joyous Fisher wrote: > Q: is there a way to do princomp or another method where every row has at > least one missing column?
You have several options. Try function nipals in packages ade4 and plspm. Also look at package pcaMethods (on Bioconductor), where you will find a full range of options for carrying out principal component analysis using matrices with missing values. Regards, Mark. ----- Mark Difford (Ph.D.) Research Associate Botany Department Nelson Mandela Metropolitan University Port Elizabeth, South Africa -- View this message in context: http://r.789695.n4.nabble.com/Principal-Components-for-matrices-with-NA-tp4425930p4427216.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list 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.
