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Re: st: Odd results with -estimates- command
From
[email protected] (Jeff Pitblado, StataCorp LP)
To
[email protected]
Subject
Re: st: Odd results with -estimates- command
Date
Mon, 04 Nov 2013 13:27:56 -0600
Eric DE SOUZA <[email protected]> using -estimates table- to report a
table of common coefficients in -regress-, -logit-, and -probit- model fits
but not all the requested coefficients are being reported:
> The output below explains the subject header.
> If bOLS is placed in the last column it does not print
> If bOLS is placed in the first column, the other two do not print.
>
> . use ch13.dta
>
> . reg fishmode lnrelp
>
> . estimates store bOLS
>
> . logit fishmode lnrelp
>
> . estimates store blogit
>
> . probit fishmode lnrelp, nolog
>
> . estimates store bprobit
>
> . estimates table blogit bprobit bOLS, t stats(N ll r2 r2_p) b(%10.4f) keep(_cons lnrelp)
>
> -----------------------------------------------------
> Variable | blogit bprobit bOLS
> -------------+---------------------------------------
> _cons | 2.0531 1.1944
> | 12.15 13.34
> lnrelp | -1.8225 -1.0555
> | -12.61 -13.87
> -------------+---------------------------------------
> N | 630 630 630
> ll | -206.8270 -204.4109 -195.1673
> r2 | 0.4633
> r2_p | 0.4486 0.4550
> -----------------------------------------------------
> legend: b/t
>
> . estimates table bOLS blogit bprobit, t stats(N ll r2 r2_p) b(%10.4f) keep(_cons lnrelp)
>
> -----------------------------------------------------
> Variable | bOLS blogit bprobit
> -------------+---------------------------------------
> _cons | 0.7842
> | 58.21
> lnrelp | -0.2429
> | -23.28
> -------------+---------------------------------------
> N | 630 630 630
> ll | -195.1673 -206.8270 -204.4109
> r2 | 0.4633
> r2_p | 0.4486 0.4550
> -----------------------------------------------------
> legend: b/t
We suspect that the problem is due to -logit- and -probit- attaching an
equation name for the coefficients in -e(b)-, but -regress- is not.
A work around is to replace the -keep(_cons turn)- option with -eq(1)-.
--Jeff
[email protected]
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