Peter Tait <petertait <at> sympatico.ca> writes:
> Is it possible to remove the "NA" level from a factor with in
> read.table()? If not what is the most efficient way of doing this?
>
> inrange<-read.table("C://...",header=T,sep="|",colClasses=c( id="factor"))
See parameters na.strings in read.table.
Dieter
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