[R]: k-fold cross validation for fda,mda etc

[Peter Ho]

Hi all,

Has anyone tried to do k-fold cross validation for flexible discriminant
analysis ( mda library), for example, using crossval() in bootstrap?

The problem is that the function crossval() requires a separate matrix
for predictors and another for responses, whereas the function fda(),
using the formula argument only.

Is there another way of doing k-fold cross validation for functions
which only have the formula argument, like for fda() and mda() ?




Peter

--------------------------------------------------------
Peter Ho GradIFST
Escola Superior de Biotecnologia
Universidade Católica Portuguesa
Rua Dr. António Bernardino de Almeida
4200-072 Porto
Portugal



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