Using "scale" in "step"

["Chris Hill" <chrishill@ednet.co.uk>]

Hello,

I'm a new S-plus user. I'm trying to use the "scale" option within the
"step" command to correct for overdispersion in a stepwise glm using Poisson
data. Unfortunately the documentation for "scale" is sparse and I am at a
loss as to its correct useage.

Any help with this topic would be much apprieciated.

Thanks

Chris Hill