![]() |
[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]
Re: st: creating survival dataset
From
Michael McCulloch <mm@pinest.org>
To
statalist@hsphsun2.harvard.edu
Subject
Re: st: creating survival dataset
Date
Fri, 30 May 2008 19:17:30 -0700
Thank you Scott!
On Fri, May 30, 2008 at 4:42 PM, Michael McCulloch <mm@pinest.org> wrote:
Hello,
I'm creating survival data, and puzzled by two observations here, which
probably reflect my elementary knowledge of the subject. Perhaps someone can
offer some helpful advice.
2. Why the confounder variable "w" is dropped due to collinearity?
Because w only takes two values depending on the value of "a"
. disp (1/(1+exp(-(-1.74))))
.14931293
. disp (1/(1+exp(-(-1.74+1))))
.32300414
Scott
*
* For searches and help try:
* http://www.stata.com/support/faqs/res/findit.html
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
*
* For searches and help try:
* http://www.stata.com/support/faqs/res/findit.html
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
© Copyright 1996–2023 StataCorp LLC | Terms of use | Privacy | Contact us | What's new | Site index |