Epi: rcutLexis – R documentation

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rcutLexis

A function to cut follow-up at intermediate event times.

Description

Cuts follow-up at intermediate event times, multiple events per person are allowed, as well as recurrences of the sme type of event. The resulting states only refer to the last assumed state, unlike the result from mcutLexis.

Usage

rcutLexis( Lx, cut,
    timescale = 1,
    precursor.states = transient(Lx))

Arguments

`Lx`	A `Lexis` object to be amended,.
`cut`	A data frame with columns `lex.id`, `cut` (event times) and `new.state` (event type, character)
`timescale`	What time scale do values in `cut$cut` refer to. Numeric or character.
`precursor.states`	an optional vector of states to be considered as "less severe" than `new.state`. See Details in the documentation of `cutLexis`

Value

A Lexis object with follow-up cut at the event times supplied in cut

Author(s)

Bendix Carstensen, http://bendixcarstensen.com

Examples

df <- data.frame(lex.id = rep(c(3, 7), c(3, 5)))
df$new.state <- sample(LETTERS[2:4], 8, r = TRUE) 
df$cut <- round(runif(8) * 100) + 1
df

Lx <- Lexis( exit = list(time=c(89, 97)),
               id = c(3, 7),
      exit.status = factor(c("A", "X")) )
Lx 
rcutLexis(Lx, df, pre = "A")

Epi

Statistical Analysis in Epidemiology

v2.44

GPL-2

Authors

Bendix Carstensen [aut, cre], Martyn Plummer [aut], Esa Laara [ctb], Michael Hills [ctb]

Initial release

2021-02-28