discrete discriminant analysis

Hello,

I am using the mda package and in particular the fda routine to classify in
term of gear a set of 20 trips.
I preformed a flexible discriminant analysis (FDA) using a set of 151
trips.



FDAT1 <- fda(as.factor(gear) ~ . ,  data =matrizR)



A total of 22 predictors were considered. 20 of the predictors are
"numeric" and 2 are "factors/discrete".



The resulting FDA rule was applied to the 20 trips and for the same
predictors in order to predict the type of gear used. however a consistent
error is occuring:



Error in polybasis(newdata, degree, monomial) %*% object$coef :
   non-conformable arguments





it is possible the problem being related with the 2 predictors that are
discrete variables?



there is already available some rotine to perform a discrete discriminant
analysis considering continuous and discrete variables?



if someone can help, would be very grateful.

cheers,

Catarina

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