[R] 1.8.1 and subsetting dataframes
p.connolly at hortresearch.co.nz
Mon Nov 24 23:51:48 CET 2003
On Mon, 24-Nov-2003 at 11:36PM +0100, Peter Dalgaard wrote:
|> Patrick Connolly <p.connolly at hortresearch.co.nz> writes:
|> > I've encountered something that didn't arise using earlier versions of
|> > R (Linux).
|> > A dataframe is created and new columns added to it by doing
|> > calculations using apply with various functions on some of the
|> > original columns. It's somewhat too involved to give a toy example
|> > that's reproducible.
|> You can try harder, though. See below.
|> > PS: Is there a more elegant way using a text connection instead or
|> > creating a temporary file in my work around?
|> Not really. Shouldn't have to do it though. You probably want to put
|> an as.vector around those apply() calls instead.
What brilliant insight! That's exactly what it needed. Thanks for
the other suggestions, but they weren't necessary.
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