[R] Help with character columns in a table

[Roger D. Peng]

You could set `as.is = TRUE' when running read.table(), as the help 
page says.

-roger

Rory Campbell-Lange wrote:
> I have done a read.table on a data file with the aim of extracting
> subsets of the data eg
> 
>     table[table$desc = 'result1',]
> 
> How can I convert $desc to a character type? At present it is seen by
> typeof() as an integer.
> 
> How can I do the equivalent of 
> 
>     table[table$desc = 'result1' && table$amt > 20, ]
> 
> Thanks,
> Rory
>