My thanks to Nick Cox for his response and I apologise if my message was
confusing. To further clarify my query, and taking an example below,
"logistic" produces an output as follows:
. xi:logistic lbw i.stunt3
i.stunt3 _Istunt3_0-1 (naturally coded; _Istunt3_0 omitted)
Logistic regression Number of obs =
734
LR chi2(1) =
56.00
Prob > chi2 =
0.0000
Log likelihood = -469.55293 Pseudo R2 =
0.0563
----------------------------------------------------------------------------
--
lbw | Odds Ratio Std. Err. z P>|z| [95% Conf.
Interval]
-------------+--------------------------------------------------------------
--
_Istunt3_1 | 8.656607 2.938012 6.36 0.000 4.450961
16.8361
----------------------------------------------------------------------------
--
My query is just as "mlfit" leaves behind "S_E_aic and S_E_sc", does
"logistic" leave behind any global macros (perhaps prefixed by "S_E_") that
hold the outputs "Odds Ratio z P>|z| [95% Conf. Interval]" and may replace
(???) in the "makematrix" command line (step 2 below).
1. create a do-file saved as "mydo1.do" containing one command line
xi : logistic lbw i.`1'
2. run the command line
makematrix, from(???): "run D:\mydo1" stunt3 stunt6 stunt12
Otherwise, I can always settle for editing the outputs after running a
series of logistic models. Many thanks for your help in advance.
Amani
-----Original Message-----
From: Nick Cox [mailto:[email protected]]
Sent: Monday, 1 September 2003 12:16
To: [email protected]
Subject: st: RE: Using "makematrix" with "logistic"
[email protected]
> I am very thankful to Nick Cox for putting together
> "makematrix". I have
> tried it to save and return the AIC and Schwarz's Criterion
> from a few logit
> models and his suggestions worked well.
>
> It will helpful to me if I can first obtain a matrix of the
> "Odds Ratio z
> P>|z| [95% Conf. Interval]" produced by "logistic" but I am
> not sure to
> which global macros S_E_** are those saved (I have had a
> look through
> logistic.ado, logistic.dlg,logis_lf.ado).
>
> I guess I am looking at a 3-step process:
>
> 1. a do-file is first saved as "mydo1.do" containing one
> command line
> xi : logistic lbw i.`1'
>
> 2. a second do-file "mydo2.do" is saved containi
ng two command lines
> xi : logistic lbw i.`1'
> mlfit
>
> 3. Then the command lines below run to obtain the two
> matrix outputs:
>
> makematrix, from(S_E_**): "run D:\mydo1" stunt3 stunt6 stunt12
>
> makematrix, from(S_E_aic S_E_sc): "run D:\mydo2" stunt3 stunt6
> stunt12
>
I am a bit confused on what you want. Your request
says one thing, but your example says another.
However, I don't know a way to use -makematrix- to pick up
odds ratios, etc., after -logistic-. These are not
within its scope. Sorry. Perhaps Roger Newson's suite
can do this.
Moreover, you want to be able to say
S_E_**
(strictly, I think you mean "S_E_??")
to pick up a list of globals via a wildcard.
I don't think anything in Stata is that smart.
The idea of a wildcard applies in Stata to varlists
or to numbered lists of local `1', `2', etc.
I am not aware that it extends beyond those.
Certainly -makematrix- is not that smart.
Nick
[email protected]
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