Batch convert columns to numeric type

Question

I have a dataframe with a bunch of columns that I need to convert to the numeric type. I have written the following code to try to do this, however it is saying the replacem

Answer 1

A fast a dirty way to do it, especially if you have variables all over that need converting, which would mean a lot of conversion code is to write the file out and read it back in again using something like write.csv/read.csv

write.csv(regmodel, file="regmodel.csv")
read.csv(file="regmodel.csv")