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barbato
2008 Sep 10
2
relsurv package
...e format like:"6/17/1997 " "9/10/1990 " "12/4/1996 " how
to convert it in the Rdate format required by ratetable?
Thank you very much for help,
Giulia
----- Original Message ----
From: "r-help-owner@r-project.org" <r-help-owner@r-project.org>
To: g.barbati@yahoo.com
Sent: Wednesday, September 10, 2008 9:39:47 AM
Subject: relsurv package
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2007 Oct 31
1
datadist options error, DESIGN library
Hello,
using the Design library, and the following command (from the Harrell's book, example at Ch.20):
dd <- datadist(rx, age, wt, pf, pf.coded, heart, map, hg, sz, sg, ap, bm)
options(datadist=='dd')
I get the following error:
Error in datadist == "dd" : comparison (1) possible only for atomic data or list
What does it means?
thank you,
giulia
2007 Dec 18
1
hazard ratio of interaction Cox model
Dear Forum,
I have a question about interaction estimate in the Cox model:
why the hazard ratio of the interaction is not produced in the summary of the model?
(Instead, the estimate of the coefficient is given in the print of the model.)
# Example:
modINT <-cph( Surv(T_BASE, T_FIN,STATUS)~ NYHA + ASINI + RFP + FE_REC + XX_PR*XX_DISF)
print(modINT)
coef se(coef) z