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max_e
2000 Sep 01
1
Help with Projection Pursuit, ppr().
...e responses (documentation for ppr doesn't explain what kind of object is Y).
My problems are:
a)I can't use the "non regression formula" ppr(), since it returns an error condition I cannot understand. This is what i did/got:
> library(modreg)
> X <- matrix(scan("miX_e.txt", 0), ncol=2, byrow=TRUE)
Read 450 items
> Y <- matrix(scan("g1_sr_e.txt", 0), ncol=1, byrow=TRUE)
Read 225 items
> g1.ppr <-ppr(X,Y, nterms=3, max.terms=5)
Error in matrix(smod[q + 6 + p * ml + 1:(q * mu)], q, mu, dimnames = list(ynames, :
length of dimname...