Possible Duplicate:
identifying or coding unique factors using R
I'm having some trouble with R.
I have a data set similar to the following, but much longer.
A B Pulse
1 2 23
2 2 24
2 2 12
2 3 25
1 1 65
1 3 45
Basically, the first 2 columns are coded. A
has 1, 2 which represent 2 different weights.
B
has 1, 2, 3 which represent 3 different times.
As they are coded numerical values, R will treat them as numerical variables. I need to use the factor function to convert these variables into factors.
Help?