[R] PLS Regression: Non-Metric

[iclozm]

Hello,

I was wondering if anyone has successfully implemented the non-metric pls
regression algorithm presented by Giorgio Russolillo in the appendix of his
PhD dissertation. 

I am having issues calling the function with his example matrices (tea data
set) and I think there may be a few mistakes in the R-Code given in the
appendix. 

The function is defined as:

myPLSQQ(Y = NA, Yc = NA, X = NA, Xc = NA, ncomp)

however nowhere does he specify what Xc and Yc refer to (I am assuming data
containing the non metric variables). Furthermore, I do not understand how
to call a function with arguments initialized to NA. 

Can I simply say: 

Y <- Y_Matrix
Xc <- X_Matrix
ncomp <- 3

data <- myPLSQQ(Y = Y, Yc = NA, X = NA, Xc = Xc, ncomp)

Kind Regards,
Chris



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