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st: Re: stcurve - help


From   "Anthony Gichangi" <anthony@isd.sdu.dk>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: Re: stcurve - help
Date   Mon, 24 Feb 2003 14:32:15 +0100

Dear Edlira
Since you have used indicator variables in the cox model by using xi:
command

you should also use them in plotting as follows.

stcurve, hazard /*
*/ at1(_Ioccup_2=1) /*
*/ at2(_Ioccup_3=1) /*
*/ at3(_Ioccup_4=1) /*
*/ at4(_Ioccup_4=1)/*
*/ at5(_Ioccup_5=1) /*
*/ at6(_Ioccup_5=1) /*
*/ at7(_Ioccup_6=1)



Regards



Anthony


----- Original Message -----

From: <Gjoncae@aol.com>
To: <statalist@hsphsun2.harvard.edu>
Sent: Monday, February 24, 2003 1:32 PM
Subject: st: stcurve - help


Hello

I am running a model with a few categorical variables eg; sex, marital
status or occupation:

xi: streg i.sex i.marstat i.occup, dist(gompertz) robust hr

After the estimation I would like to generate curves for each variable.
Eg a graph where I show the hazard for males and females

Or a graph for the occupational categories. Here is what I am doing:

stcurve, hazard /*
*/ at1(occup=1) /*
*/ at2(occup=2) /*
*/ at3(occup=3) /*
*/  at4(occup=4)/*
*/ at5(occup=5) /*
*/ at6(occup=6) /*
*/ at7(occup=7)

For some reason it does not work. The error message that I get is:

at( ) variable occup not in the estimated model

Do you know what I am doing wrong and how I can correct it?
Thank you in advance
Best
Edlira

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