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1. instant hazard rate/survival (score: 1): Author: Maggie Cheang <mcheang@mac.com>; Date: Mon, 26 Sep 2005 22:04:52 -0700; Hi, I would like to calculate and plot the instantaneous hazard rate (not the cumulative hazard function, or the survival estimates) of two groups? How I can do that in s-plus? thanks Maggie Cheang m; /archives/html/s-news/2005-09/msg00089.html (7,373 bytes)
2. Re: instant hazard rate/survival (score: 1): Author: Terry Therneau <therneau@mayo.edu>; Date: Tue, 27 Sep 2005 08:22:22 -0500 (CDT); The simplest way that I know to get an estimate of the hazard is to use smoothing splines. fit <- survfit(Surv(time, status) ~ sex, data=lung) temp1 <- smooth.spline(fit[1]$time, 1-fit[1]$surv, df=5); /archives/html/s-news/2005-09/msg00090.html (8,085 bytes)
3. Re: instant hazard rate/survival (score: 1): Author: Maggie Cheang <mcheang@mac.com>; Date: Tue, 27 Sep 2005 15:13:56 -0700; Thanks for Terry to reply for my qustion. That comes to my second question, is there a simple way to plot the Hazard ratio from a coxph? anyone familiar with the muhaz package? thanks a bunch Maggie; /archives/html/s-news/2005-09/msg00096.html (9,239 bytes)
4. Re: instant hazard rate/survival (score: 1): Author: Prof Brian Ripley <ripley@stats.ox.ac.uk>; Date: Wed, 28 Sep 2005 09:18:11 +0100 (BST); Thanks for Terry to reply for my qustion. Note that it is implicit in Terry's answer that the hazard is smooth. You have to make some asssumption here, and his includes how smooth it is. That comes; /archives/html/s-news/2005-09/msg00098.html (11,312 bytes)
5. Re: instant hazard rate/survival (score: 1): Author: Maggie Cheang <mcheang@mac.com>; Date: Wed, 28 Sep 2005 01:54:43 -0700; I really appreciate your advice. I am a beginner in survival analysis, in fact, in S/R. Maybe i should clarify what I would like to do. I would like to look to plot both the instant hazard rate of a; /archives/html/s-news/2005-09/msg00099.html (13,191 bytes)
6. Re: instant hazard rate/survival (score: 1): Author: "vincent vinh-hung" <conrvhgv@az.vub.ac.be>; Date: Wed, 28 Sep 2005 11:46:38 +0200; Many thanks for your question that I did not dare asking and for the instructive responses. Another example of plotting hazard can be found in Retsky M et al, breast cancer research: http://breast-ca; /archives/html/s-news/2005-09/msg00100.html (13,943 bytes)

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