Displaying 2 results from an estimated 2 matches for "coxcv".
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2013 Apr 24
2
Trouble Computing Type III SS in a Cox Regression
...cox3grp<- subset(survData,
> Treatment %in% c("DC", "DA", "DO"),
> c("PTNO", "Treatment", "PFS_CENSORED", "PFS_MONTHS", "AGE", "PS2"))
> cox3grp<- droplevels(cox3grp)
> str(cox3grp)
>
> coxCV<- coxph(Surv(PFS_MONTHS, PFS_CENSORED == 1) ~ AGE + PS2, data=cox3grp, method = "efron")
> coxCV
>
> drop1(coxCV, test="Chisq")
>
> require(car)
> Anova(coxCV, type="III")
>
> And here are my results:
>
> cox3grp<- subset(survData,
&...
2013 Apr 24
1
Trouble Computing Type III SS in a Cox Regression using drop1 and Anova
...g on.
Here is my R code:
cox3grp <- subset(survData,
Treatment %in% c("DC", "DA", "DO"),
c("PTNO", "Treatment", "PFS_CENSORED", "PFS_MONTHS", "AGE", "PS2"))
cox3grp <- droplevels(cox3grp)
str(cox3grp)
coxCV <- coxph(Surv(PFS_MONTHS, PFS_CENSORED == 1) ~ AGE + PS2, data=cox3grp, method = "efron")
coxCV
drop1(coxCV, test="Chisq")
require(car)
Anova(coxCV, type="III")
And here are my results:
cox3grp <- subset(survData,
+ Treatment %in% c("D...