On Oct 1, 2009, at 6:39 PM, Clive Nicholas wrote:
Mark Ludwig wrote:
I have built a dataset that combines monthly Gallup polls during the
presidential election season. To this I have added some additional
variables
as controls (eg, the relevant CPI rate during the month each poll was
taken). I am attempting to run an xtlogit with one-period lags and
get the
following error message:
number of quadrature points must be less than or equal to number of
observations.
I am not sure what's wrong ... I have more than 10,000 observations
in the
dataset.
Section 3.3 of Statalist says:
"Say exactly what you typed and exactly what Stata typed (or did) in
response. N.B. exactly! If you can, reproduce the error with one of
Stata's provided datasets or a simple concocted dataset that you
include in your posting."
--
Clive Nicholas
[Please DO NOT mail me personally here, but at
<[email protected]>. Please respond to contributions I make in
a list thread here. Thanks!]
"My colleagues in the social sciences talk a great deal about
methodology. I prefer to call it style." -- Freeman J. Dyson.
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sort id date
. tsset id date, monthly
panel variable: id (weakly balanced)
time variable: date, 2007m7 to 2008m11
delta: 1 month
.
. xtlogit war income male PID education L.war_casualties
L.dem_iraq_email L.GOP_iraq_email L.dem
> _iraq_web L.GOP_iraq_web L.media_iraq if tin(2007m9, 2008m3)
number of quadrature points must be less than or equal to number of obs
r(198);
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