perstat {eha}

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