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st: variance-covariance matrix of the marginal effects of a logit and probit
From
"Mongeon, Kevin" <[email protected]>
To
"'[email protected]'" <[email protected]>
Subject
st: variance-covariance matrix of the marginal effects of a logit and probit
Date
Tue, 26 Apr 2011 13:15:31 +0000
I was wondering how to calculate (and save) the variance-covariance matrix of the marginal effects of a logit and probit regression. I am using Stata 11.
Thanks,
Kevin
-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Argyn Kuketayev
Sent: Tuesday, April 26, 2011 9:11 AM
To: [email protected]
Subject: st: decoding patterns for xttrans or other regression models
Hello
I have the data set, where each observation has the following format:
item#,state_history,start_month,end_month
1,111232100,201001,201009
2,1232100,201002,201008
The second column is similar to what is produced by -xt- commands with
-pattern- option.
I need to convert the above compressed format into:
1,1,201001
1,1,201002
1,1,201003
1,2,201004
1,3,201005
1,2,201006
1,1,201007
1,0,201008
1,0,201009
2,1,201002
2,2,201003
2,3,201004
2,2,201005
2,1,201006
2,0,201007
2,0,201008
because I think that -xttrans- and -logit- commands would need in this format, i.e.
item#,state,month
is there an easy way of doing this in Stata? I've been decoding the history field outside Stata 11 so far, but maybe it can do it for me.
cheers
--
Argyn Kuketayev
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