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Re: st: transformation of variables


From   Nick Cox <njcoxstata@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: transformation of variables
Date   Sat, 4 Jun 2011 08:43:04 +0100

In what sense is your model too big?

-avplots- can help (also -favplots- from SSC) with up to say 20
predictors, but with say 200 the graphs are not likely to be readable.
But -ladder- is at best partly relevant: the transform that most
nearly symmetrises a marginal distribution is not necessarily one that
is appropriate for transforming a predictor.



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