Stratified baseline graphical GOF test for Cox covariates in PH regression

Source: R/gof-phreg.R

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

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)
gofG.phreg(m2)

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