search for: pom1

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2001 Apr 06
0
Subscript out of bounds- (my) problem with expansion of expression?
...2 11 0 36 109 My question is: Why the upper call of chisq.test works, but application of function (described below) generating the "-c(3,4,6)" string automatically from the table does not? A function generating logical vector indicating non-zero values in a vector "vec1" pom1 <- function(vec1) { po1 <-(vec1)>0 po1 } >pom1(mytable[1, ,1]) 1 2 3 4 5 6 7 8 TRUE TRUE NA NA TRUE NA TRUE TRUE A function "generator" with argument of logical vector "vec" indicating non-presence of zeros is defined, which returns d...
2005 Jul 14
2
Coxph with factors
Hello, I am fitting a coxph model with factors. I am running into problems when using 'survfit'. I am unsure how R is treating the factors when I fit, say: > DATA<-data.frame(time.sec,done,f.pom=factor(f.pom),po,vo) > final<-coxph(Surv(time.sec,done)~f.pom*vo+po,data=DATA) > final.surv<-survfit((final), individual=T,conf.type="log-log")