Dear Alexandra,
if you really want to use pseudo-R2 measures after xtlogit you can
always calculate them by hand.
Here's a friendly little program that does just that:
program define xtlogitr2
disp " McFadden: " 1-e(ll)/e(ll_0)
disp " Cox+Snell: " 1-exp(e(ll_0)*2/e(N))/exp(e(ll)*2/e(N))
disp " Nagelkerke: "
(1-exp(e(ll_0)*2/e(N))/exp(e(ll)*2/e(N)))/(1-exp(e(ll_0)*2/e(N)))
end
Best,
Daniel
--
Friend to Groucho Marx: "Life is difficult!"
Marx to Friend: "Compared to what?"
Daniel Stegm�ller
B�ckstr. 11
68159 Mannheim
0621/9783639
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