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st: RE: error messages while using the stgest command


From   "Martin Weiss" <martin.weiss1@gmx.de>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: RE: error messages while using the stgest command
Date   Thu, 3 Jun 2010 00:58:18 +0200

<>

The second error occurs because -gesttowb- is looking for results left
behind by a Weibull estimation. If you have not run this estimation
previously, the macros that -gesttowb- is trying to multiply do not exist.
The example code "geststb.do" delivered with the package runs without a
hitch for me, btw, and executes -gesttowb- repeatedly.

The first error does have something to do with the -graph- command on line
304 of -stgest.ado-, though the problem is difficult to track down. 


HTH
Martin


-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Victor Mauricio
Herrera
Sent: Donnerstag, 3. Juni 2010 00:26
To: statalist
Cc: Leonelo Bautista
Subject: st: error messages while using the stgest command

Hi all, 

I wonder if anyone could shed light on the following. I consistently get two
error messages while using the stgest command (Stata Journal 2002,
2(2):164-182) in Stata/MP 11.0.  The first one happens after the causal
survival ratio is reported:  

                "Note - these estimates should be confirmed with an
                  interval bisection search by omitting the step option
                  option ( not allowed
                  r(198);"

I guess this has something to do with the instructions to graph the psi-by-z
graph.

The second error occurs when using gesttowb:
 
                 gesttowb
                 g-estimated hazard ratio *:  operator invalid
                 r(198);

My versions of these programs are:

                   which gesttowb
                   c:\ado\plus\g\gesttowb.ado
                   *! Version 1.0         (SJ2-2: st0014)
                   which stgest
                   c:\ado\plus\s\stgest.ado
                   *! version 5.5 JACS/KT g-estimation, June 2002    (SJ2-2:
st0014)

Thanks,


VICTOR M. HERRERA MD. MS.
Research Assistant - Wisconsin Diabetes Registry
Population Health Sciences Department
University of Wisconsin
610 Walnut St. 626 WARF
Madison, WI 53726
(608) 265-3686
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