Convert between survival analysis measures

Converts a survival probability (and optionally a hazard) to other survival analysis metrics.

Usage

convert_survival_measures(survival, hazard = NULL, measure)

Arguments

survival

Numeric survival probability or vector of probabilities.

hazard

Numeric hazard value or vector. Required for "hazard" and "density" measures.

measure

Character string specifying the desired measure. One of: "survival", "risk", "cumulative_hazard", "hazard", or "density".

Value

Numeric value or vector of the requested measure.

Examples

# Risk is the complement of survival
convert_survival_measures(0.8, measure = "risk")
#> [1] 0.2

# The density is the product of the hazard and the survival, so the
# "density" and "hazard" measures need the hazard as well.
convert_survival_measures(
  c(0.9, 0.8, 0.6),
  hazard = c(0.05, 0.06, 0.08),
  measure = "density"
)
#> [1] 0.045 0.048 0.048