Displaying 3 results from an estimated 3 matches for "poly_v".
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poly_vs
2007 Aug 06
1
(Censboot, Z-score, Cox) How to use Z-score as the statistic within censboot?
Dear R Help list,
My question is regarding extracting the standard error or Z-score from a
cph or coxph call. My Cox model is: -
modz=cph(Surv(TSURV,STATUS)~RAGE+DAGE+REG_WTIME_M+CLD_ISCH+POLY_VS,
data=kidneyT,method="breslow", x=T, y=T)
I've used names(modz) but can't see anything that will let me extract
the Z scores for each coefficient or the standard errors in the same way
one can use coef (modz).
I need to get either the se or Zscore as I am hoping to be able to u...
2007 Aug 16
1
(coxph, se) Obtaining standard errors of coefficients from coxph to store
Hi all,
I'm wanting to be able to find and store the z-score of coxph below: -
modz=coxph(Surv(TSURV,STATUS)~RAGE+DAGE+REG_WTIME_M+CLD_ISCH+POLY_VS,
data=kidneyT,method="breslow")
I know summary(modz) will give me this, but how do i extract the
standard error or z-score values in a similar way to obtaining the
coefficients by coef(modz) ? I think it must be something to do with
modz$var but I'm having a complete mental blank....
2007 Sep 10
0
Loop and loop output [Cox model, for, function, loglik]
...CLD_ISCH,CLD_ISCH,tf2)
#-----------------------------------------------------------------------
-------#
#-----------------------------------------------------------------------
-------#
newdata=data.frame(T1,T2,T3,kidneyT)
attach(newdata)
coxmodel=coxph(Surv(TSURV,STATUS)~RAGE+DAGE+REG_WTIME_M+POLY_VS+T1+T2+T3
,
method="breslow", data=newdata)
coxmodel$loglik[2]
##########################################################
Regards and Thx
DaveL
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