Displaying 1 result from an estimated 1 matches for "bmicat".
2006 Mar 16
4
excluding factor levels with read.table() and colClasses=
Hi,
I am reading a "|" delimited text file into R using read.table(). I am
using colClasses= to specify some variables as factors. Some of these
variables include missing values coded as "NA". Unfortunately the R code
I am using (pasted bellow) includes "NA" as one of the factor levels. Is
it possible to remove the "NA" level from a factor with in