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...ula(formula = Q65 ~ ., data = smallx, size = 2, rang = 1, maxit = 250, subset = jj) where smallx is a data.frame with dimensions 300 by 103 that contains numerical and factor variables. Smallx is a random sample of 300 from the tab-delimited numeric dataset found at http://www.gvu.gatech.edu/user_surveys/survey-1998-10/datasets/num_general.zip. The code I used to recode the data is below, also. I have successfully run the sample code from the predict.nnet help file without any problem. ********************************************************************* data source: http://www.gvu.gatech.edu/...