Tumur Gunchinmaa wrote:
> Dear Members, My question is, I ran 2 OLS
> regression(below) both having the same number of
> observations(19) however one does not have the F test,
> instead is a dot.
> Regressions were
> reg y x1 x2 if z==1
> reg y x1 x2 if z==2
> What does the dot imply?
Clicking on the hypertext where the F test output would be (or consulting
-whelp j_robustsingular-, which amounts to the same thing) should tell
you.
CLIVE NICHOLAS |t: 0(044)7903 397793
Politics |e: [email protected]
Newcastle University |http://www.ncl.ac.uk/geps
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