survival_to_cumulative_hazard function

Transform Survival to Cumulative Hazard

Helper function to transform between survival function and CHF

survival_to_cumulative_hazard(survival_functions, epsilon = 0)

Arguments

• survival_functions: matrix or vector, with each row representing a survival function
• epsilon: a positive numeric number to add, so that the logarithm can be taken

Returns

A matrix or vector transformed to the form of a cumulative hazard function.

Examples

library(survex)

vec <- c(1, 0.9, 0.8, 0.7, 0.6)
matr <- matrix(c(1, 0.9, 0.8, 1, 0.8, 0.6), ncol = 3)

survival_to_cumulative_hazard(vec)

survival_to_cumulative_hazard(matr)