Re: [R] Data reconstruction following PCA using Eigen function

Hi Thomas, Thanks very much for your reply. I used svd and it worked perfectly for my purposes! Thanks again, Julia -- View this message in context: http://r.789695.n4.nabble.com/Data-reconstruction-following-PCA-using-Eigen-function-tp2226535p2229191.html Sent from the R help mailing list arc

Re: [R] Data reconstruction following PCA using Eigen function

Looks like you have some numerical precision issues. Why not use the svd function directly? (See below.) -tgs x <- read.table( textConnection( "Sample1 0.7329881 0.76912670 2.45906143 -0.06411602 1.2427801 0.3785717 2.34508664 1.1043552 -0.1883830 0.6503095 Sample2 -2.0446131 1.727832