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Re: st: -mfx-: can I just keep the interaction variable?
From
Scott Cunningham <[email protected]>
To
[email protected]
Subject
Re: st: -mfx-: can I just keep the interaction variable?
Date
Mon, 11 Sep 2006 10:29:52 -0400
Richard,
You're right; that must be it, because when I drop vce(boot) the -
mfx- works fine. What's a good solution for calculating the marginal
effects when you've used bootstrapping to construct standard errors,
but -mfx- is having that type of trouble?
s
cott
On Sep 10, 2006, at 10:22 PM, Richard Williams wrote:
At 07:33 PM 9/10/2006, Scott Cunningham wrote:
I wonder if the vce(boot) and/or the fact that not all replicates
were successful has something to do with it? What happens if you
run it without vce(boot)? What does ereturn list tell you e(N) is?Richard,
The dataset is the NLSY97, selection just on males, blacks and whites
only, and balanced for the 1997-2002. Here's the entire code, plus
output. I'm going to snip the fixed effects, though.
. xi:xtpoisson rp i.race age age2 hgc hhd1 i.year i.fip, vce(boot);
...
Note: One or more parameters could not be estimated in 7 bootstrap
replicates; standard error
estimates include only complete replications.
. mfx, dydx varlist(_Irace_2 age age2 hgc hhd1);
no observations
r(2000);
-------------------------------------------
Richard Williams, Notre Dame Dept of Sociology
OFFICE: (574)631-6668, (574)631-6463
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EMAIL: [email protected]
WWW (personal): http://www.nd.edu/~rwilliam
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