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Re: st: parametric survival
From
Steven Samuels <[email protected]>
To
[email protected]
Subject
Re: st: parametric survival
Date
Fri, 1 Apr 2011 11:03:42 -0400
Sorry, I got the intercepts mixed up. Here's the correct version.
**************************CODE BEGINS**************************
use "http://www.stata-press.com/data/r11/hip3";, clear
streg protect age, d(weibull) anc(male)
// [ln_p]_cons is female intercept
lincom [ln_p]male +[ln_p]_cons //male intercept
***************************CODE ENDS***************************
Farzaneh:
The only reason that I can think for doing this is that you want an intercept for each category of a categorical predictor. If that's your issue, here's a solution.
Steve
Steven J. Samuels
Consultant in Statistics
18 Cantine's Island
Saugerties, NY 12477 USA
Voice: 845-246-0774
Fax: 206-202-4783
[email protected]
On Apr 1, 2011, at 4:57 AM, Farzaneh Amanpour wrote:
Hi,
I am fitting the generalized gamma distribution to survival data.I
need all three parameters of generalized gamma to have linear
relationship with covariates without having the intercept.The command
"streg[varlist],dist(gamma) anc(varlist) anc2(varlist) noconstant"
only model the first parameter without intercept, and would not remove
the constant terms in two ancillary parameters. What can I do to
suppress the constant terms in two ancillary parameters('anc' and
'anc2')?
Thank you in advance ,
Farzaneh Amanpour
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