missing in neural network

# create formula (without comma index on column names) fm <-
as.formula(paste("resp ~", paste(colnames(mydata)[1:3110],
collapse="+")))

# call neuralnet
out <- neuralnet(fm,data=mydata, hidden = 4, lifesign = "minimal",
linear.output = FALSE, threshold = 0.1)

Does neuralnet not recognise '.'? If it does and if you include resp in the data frame, you could drastically simplify the formula, to just resp~. That is:

out <- neuralnet(resp~. , data=cbind(resp, mydata), hidden = 4, lifesign = "minimal",
	linear.output = FALSE, threshold = 0.1)


S Ellison


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