rs.zph {relsurv} | R Documentation |
Calculates the scaled partial residuals of a relative survival model (rsadd
, rsmul
or rstrans
)
rs.zph(fit,sc,transform="identity",var.type="sum")
fit |
the result of fitting an additive relative survival model, using the
rsadd , rsmul or rstrans function.
In the case of multiplicative and transformation models the output is identical to cox.zph function, except no test is performed.
|
sc |
partial residuals calculated by the resid function. This is used to save time if several tests
are to be calculated on these residuals and can otherwise be omitted.
|
transform |
a character string specifying how the survival times should
be transformed. Possible values are "km" , "rank" , "identity" and log .
The default is "identity" .
|
var.type |
a character string specifying the variance used to scale the residuals. Possible values are
"each" , which estimates the variance for each residual separately, and sum (default),
which assumes the same variance for all the residuals.
|
an object of class rs.zph
. This function would usually be followed by a
plot of the result. The plot gives an estimate of the time-dependent
coefficient beta(t)
. If the proportional
hazards assumption is true, beta(t)
will be a horizontal
line.
rsadd
, rsmul
, rstrans
, resid
, cox.zph
.
data(slopop) data(rdata) fit <- rsadd(Surv(time,cens)~sex+ratetable(age=age*365,sex=sex, year=year),ratetable=slopop,data=rdata,int=5) rszph <- rs.zph(fit)