On 08/12/2010 08:00 PM, elaine kuo wrote:
Dear list,
factor function was tried but failed.
Pls kindly help and thank you.
E.
code
rm(list=ls())
library(faraway)
data (pima)
pima$test< - factor (pima$test)
[1] NA NA NA NA NA NA
The unreported warning message should have given you a
hint.
I'm guessing you want the assignment operator, which is:
<- (no spaces)
pima$test <- factor(pima$test)
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