Re: [R] PLS1 NIPALS question: error with chemometrics package?

2013-09-23 Thread Andrews, Chris
(th) %*% th)) # modified: removed normalization of ch Chris -Original Message- From: Brad P [mailto:bpsch...@gmail.com] Sent: Sunday, September 22, 2013 9:44 PM To: r-help@r-project.org Subject: [R] PLS1 NIPALS question: error with chemometrics package? I am doing a self study, trying

[R] PLS1 NIPALS question: error with chemometrics package?

2013-09-22 Thread Brad P
I am doing a self study, trying to understand PLS. I have run across the following and hope that someone here can clarify as to what is going on. These are the data from Wold et al. (1984) dat - structure(list(t = 1:15, y = c(4.39, 4.42, 5, 5.85, 4.35, 4.51, 6.33, 6.37, 4.68, 5.04, 7.1, 5.04, 6,