On Feb 4, 2007, at 3:42 PM, Rene Braeckman wrote: > My question is how to construct the equivalent of myDF$myCol that > can be > used as such. Or is there a better solution? > I think what you want is ?with and wrapping the whole work you want to do in a function. > Thanks. The help and discussions on this forum are the best. > Rene Haris