Re: [R] Package rrcov, functions PcaCov, PcaHubert, PcaGrid

2011-07-13 Thread albina1985
Ok, thank you Mark. I also found out, that it is not a good idea to perform a Pca with the equal numbers of observation and variables. It is preferable to have much more observations. Regards, Albina. -- View this message in context: http://r.789695.n4.nabble.com/Package-rrcov-functions-PcaCov

Re: [R] Package rrcov, functions PcaCov, PcaHubert, PcaGrid

2011-07-13 Thread Mark Difford
On Jul 13, 2011; 12:03pm Albina wrote: > Error: diff(sv)<0 ist not all TRUE > ... . >snip< > The same error occurs with the other functions. What does this mean and > how can I perform the robust > PCA with these functions by using a quadratic matrix as input? Albina, You at least need to feed

[R] Package rrcov, functions PcaCov, PcaHubert, PcaGrid

2011-07-13 Thread albina1985
Hello, I'm using the R-2.13.1 version in Windows and I'm trying to do a robust Pca with the following: x<-matrix(0.5,30,30) library("rrcov") y<-PcaCov(x) The following error occurs: Error: diff(sv)<0 ist not all TRUE The same error occurs with the other functions. What does this mean and how