[R] predict.coxph

[Christos Hatzis]

Hi Kathy,

Expected refers to the expected number of events for an individual over the
observed at-risk interval.  Most of the theory behind Therneau's 'survival'
package explanation of many of its functionality is covered in the following
report:

http://cancercenter.mayo.edu/mayo/research/biostat/upload/survival.pdf

and of course in his book "Modeling Survival Data".

Cheers,
-Christos

Christos Hatzis, Ph.D.
Nuvera Biosciences, Inc.
400 West Cummings Park
Suite 5350
Woburn, MA 01801
Tel: 781-938-3830
www.nuverabio.com
 
 

-----Original Message-----
From: r-help-bounces at stat.math.ethz.ch
[mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of Kathy-Andrée
Laplante-Albert
Sent: Monday, November 20, 2006 11:12 AM
To: r-help at lists.R-project.org
Subject: [R] predict.coxph

Hi everyone, 

Can anyone give me more details about the 'lp', 'risk', 'terms', and
'expected'
options from the predict.coxph function?
 
I actually found that risk is obtained from exp(lp). I can't find
information on 'expected' type however. Is anybody can expand the
information on this function?

Thank you in advance, I will appreciate it. 

Kathy-Andrée Laplante-Albert
Étudiante à la maîtrise
Groupe de Recherche sur les Écosystèmes Aquatiques Université du Québec à
Trois-Rivières C.P. 500, Trois-Rivières (Québec) Canada 

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