tpchreg: Proportional hazards regression with piecewise constant...

In eha: Event History Analysis

Proportional hazards regression with piecewise constant hazards and tabular data.

Description

Proportional hazards regression with piecewise constant hazards and tabular data.

Usage

tpchreg(formula, data, time, weights, last, subset, na.action, 
contrasts = NULL, start.coef = NULL, 
control = list(epsilon = 1.e-8, maxit = 200, trace = FALSE))

Arguments

formula	a formula with 'oe(count, exposure) ~ x1 + ...'
data	a data frame with occurrence/exposure data plus covariates.
time	the time variable, a factor character vector indicating time intervals, or numeric, indicating the start of intervals.
weights	Case weights.
last	If time is numeric, the closing of the last interval.
subset	subset of data, not implemented yet.
na.action	Not implemented yet.
contrasts	Not implemented yet.
start.coef	For the moment equal to zero, not used.
control	list of control parameters for the optimization.

Note

The interpretation of cuts is different from that in hpch. This is intentional.

See Also

oe.

Examples

sw <- swepop
sw$deaths <- swedeaths$deaths
fit <- tpchreg(oe(deaths, pop) ~ strata(sex) + I(year - 2000), 
time = age, last = 101, data = sw[sw$year >= 2000, ])
summary(fit)

eha documentation built on Oct. 7, 2024, 1:17 a.m.