estim.hazard {cohorttools}

R Documentation

Estimates hazard function using Poisson model

Description

Estimates hazard function using Poisson model

Usage

estim.hazard(
  time,
  status,
  breaks,
  knots,
  time.eval = breaks,
  alpha = 0.05,
  ...
)

Arguments

time	time variables
status	status indicator Lowest value used as sensoring. If only one unique value detected, all are assumed events
breaks	time is splitted with these values
knots	knots for natural splines used in estimation of hazard function
time.eval	in which time points hazard function is evaluate.
alpha	significance level for confidence intervals
...	parameters for glm

Value

Returns data frame with time and hazard function values with attribute 'estim.hazard.param' containing estmation parameters (breaks and knots)

Author(s)

Jari Haukka jari.haukka@helsinki.fi

Examples

library(survival)
tmp.hz<-estim.hazard(time=lung$time,status=lung$status)
head(tmp.hz,2)
attributes(tmp.hz)$estim.hazard.param # estimation parameters

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