Dawat Lidia wrote:
> I am estimating OLS regression model. From this I was trying to estimate
> the
> predicted value holding regressors at their mean value. But I am not clear
> if I can also hold dummy regressors at their means value. Is it
> justifiable
> to put dummy explantory variables at their mean value and obtain the
> predicted value ?
No, it isn't: how can it be? If your dummy variable is gender, how can it
possibly make sense to estimate the effect of being 0.47 of a male on
whatever the response of interest is?
A quick solution to your problem is to pop along to -whelp adjust-. There
you'll find that you can hold your continuous predictor and covariate
variables at their means (if you desire), whilst setting your dummies at 0
or 1 (or both, if you choose to -adjust- twice).
CLIVE NICHOLAS |t: 0(044)7903 397793
Politics |e: [email protected]
Newcastle University |http://www.ncl.ac.uk/geps
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