Stratified baseline graphical GOF test for Cox covariates in PH regression

Looks at stratified baseline in Cox model and plots all baselines versus each other to see if lines are straight, with 50 resample versions under the assumptiosn that the stratified Cox is correct

Usage

gofG.phreg(x, sim = 0, silent = 1, lm = TRUE, ...)

Arguments

x: phreg object
sim: to simulate som variation from cox model to put on graph
silent: to keep it absolutely silent
lm: addd line to plot, regressing the cumulatives on each other
...: Additional arguments to lower level funtions

Author

Thomas Scheike and Klaus K. Holst

Examples

data(tTRACE)

m1 <- phreg(Surv(time,status==9)~strata(vf)+chf+wmi,data=tTRACE) 
m2 <- phreg(Surv(time,status==9)~vf+strata(chf)+wmi,data=tTRACE) 
par(mfrow=c(2,2))

gofG.phreg(m1)
#> Warning: number of rows of result is not a multiple of vector length (arg 2)
gofG.phreg(m2)
#> Warning: number of rows of result is not a multiple of vector length (arg 2)

bplot(m1,log="y")
bplot(m2,log="y")