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Stata realizes that one constraint in your specification is redundant and
disregards it, just as it should... See [R] test, page 456. You can of
course accumulate the single -test-s into one big test one after the
other...
*************
webuse highschool, clear
svy: regress weight height state county school
test he=sch
test he=state,accum
test scho=state,accum
*************
As the example shows, even then Stata recognizes the redundancy in the last
line.
BTW, why open the dialog box for -testparm- before "submitting your
analysis"?
HTH
Martin
-----Ursprüngliche Nachricht-----
Von: [email protected]
[mailto:[email protected]] Im Auftrag von Ted Fuller
Gesendet: Samstag, 31. Januar 2009 21:46
An: [email protected]
Betreff: st: Question about "testparm"
This is probably a pretty basic question.
I am using svyregress.
Before submitting my analysis, I opened the dialog box for "testparm"
and specified three variables and indicated that I wanted to test
whether the coefficients for these three variables were equal.
The output said:
(1) - var1 + var2 =0
(2) - var1 + var3 =0
F(2, 338) = 13.10
Prob > F = 0.0000
I thought I was going to get three tests:
(1) to see if the coefficient for var1 = coefficient for var2;
(2) to see if the coefficient for var1 = coefficient for var3;
(3) to see if the coefficient for var2 = coefficient for var3.
But I only got one test.
How can I get the three tests that I mentioned?
Thanks!
Ted Fuller
Theodore Fuller
Department of Sociology (0137)
Virginia Tech
Blacksburg, VA 24061
Phone: 540/231-8969
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