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2013 Mar 27
1
Crrstep help
Hi,
I'm using crrstep package to do stepwise covariate selection for the Fine &
Gray competing risks regression model. However, I keep getting an error
(please see below). Please help!!
> PHstep <-
crrstep(years~1+var1+var2+var3+var4+var5,scope.min=~1,censorcmprsk,
data=crisk, direction=c("forward"), crr.object = FALSE, trace = TRUE, steps
= 100)
crrstep(formula = years ~ 1 + var1+var2+var3+var4+var5, scope.min = ~1,
etype = censorcmprsk, data = crisk, direction = c("forward"),
crr.object = FALSE, trace = TRUE, steps = 100)
*Error in crr(fti...
2018 Feb 16
0
Competing risks - calibration curve
...ovide R-code in my previous mail. R code is below
#install.packages("rms")
require(rms)
#install.packages("mstate")
library(mstate)
require(splines)
library(ggplot2)
library(survival)
library(splines)
#install.packages("survsim")
require(survsim)
set.seed(10)
df<-crisk.sim(n=500, foltime=10, dist.ev=rep("lnorm",2), anc.ev=c(1.48,0.53),beta0.ev = c(3.80,2.54), dist.cens = "lnorm", anc.cens = 3.5, beta0.cens = 5.42, z=NULL, beta = list(c(0.21, 0.017), c(0.37, 0.016)), x=list(c("normal",0,1), c("bern",0.564)), nsit=2)
table(s...