perstat {eha}R Documentation

Period statistics

Description

Calculates occurrence / exposure rates for time periods given by period and for ages given by age.

Usage

perstat(surv, period, age = c(0, 200))

Arguments

surv An (extended) surv object (4 columns with enter, exit, event, birthdate)
period A vector of dates (in decimal form)
age A vector of length 2; lowest and highest age

Value

A list with components

events No. of events in eavh time period.
exposure Exposure times in each period.
intensity events / exposure

Author(s)

Göran Broström

See Also

piecewise


[Package eha version 1.2-4 Index]