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Creating Objects of Logrank Test

Source: R/logrank_.R
logrank_.Rd

logrank_ is a wrapper function survival::coxph to create an object to be passed into jointCovariance, the main function of this package through its argument .... Logrank test is the score test under the proportional hazards regression model. The object defines how a logrank test would be computed.

Usage

logrank_(formula, ties = c("efron", "breslow", "exact"), data_index = 1)

Arguments

formula

see formula in survival::coxph.

ties

character string specifying the method for tie handling. One of "efron" (default), "breslow", or "exact". Passed through to survival::coxph.

data_index

integer. Index of the data frame in the data argument of jointCovariance to be used when computing testing statistic of logrank test.

Details

Not all arguments of survival::coxph are supported in logrank_ due to the complexity in handling environment and scope, which is particularly difficult for arguments like weights, subset, etc.