R: Test Cox proportional hazards assumption

cox.zph {InformativeCensoring}

R Documentation

Test Cox proportional hazards assumption

See cox.zph function in the survival package

cox.zph(fit, transform = "km", global = TRUE, ...)

`fit`	the result of fitting a Cox regression model, using the `coxph` or `coxme` functions.
`transform`	a character string specifying how the survival times should be transformed before the test is performed. Possible values are `"km"`, `"rank"`, `"identity"` or a function of one argument.
`global`	should a global chi-square test be done, in addition to the per-variable or per-term tests tests.
`...`	Additional arguments to cox.zph, for example `index` if fit is a `GammaStatList` object