I rewrite my previous comand, CVlm works now. It was related to having the
same names in the df than in the formula included at CVlm .
Now I'd like to know:
Q1: if the seed is of any special importance, or I can type just seed=29
like in the example?
Q2: I typed:
CVlm(df = mydf, form.lm = formula(response~v1+v2+factor), m=3, dots = TRUE,
seed=29, plotit=TRUE, printit=TRUE)
In case is important factor has three levels, this way: table(factor):
levels: 2 3 4
freq: 2 21 34
And when the 3rd Fold it says:
fold 3
Observations in test set: 2 5 6 8 11 13 15 16 17 22 29 33 35 37 41 46 51 52
55
Error en model.frame.default(Terms, newdata, na.action = na.action, xlev =
object$xlevels) :
factor 'factor' has new level(s) 2
What does it mean?
Thanks in advance,u...@host.com
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