I tried to switch my data using "as.numeric", "as.factor", etc.
This is for the latest version in R, and I've been trying to solve by searching on some website but I can't find the solution
r604c_fixed <- as.numeric(Test$r604c) #convert to numerical scale
I expect the output will be a numeric vector, as I typed in a previous function, but the result is still a vector of NA's.