[R] Principal Components for matrices with NA

[Mark Difford]

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.