derive_vars_aage: Derive Analysis Age

In epijim/admiral: ADaM in R Asset Library

Description

Derives analysis age (AAGE) and analysis age unit (AAGEU)

Usage

derive_vars_aage(
  dataset,
  start_date = BRTHDT,
  end_date = RANDDT,
  unit = "years"
)

Arguments

dataset	Input dataset The columns specified by the start_date and the end_date parameter are expected.
start_date	The start date A date or date-time object is expected. Default: BRTHDT
end_date	The end date A date or date-time object is expected. Default: RANDDT
unit	Unit The age is derived in the specified unit Default: 'years' Permitted Values: 'years', 'months', 'weeks', 'days', 'hours', 'minutes', 'seconds'

Details

The age is derived as the integer part of the duration from start to end date in the specified unit.

Value

The input dataset with AAGE and AAGEU added

Author(s)

Stefan Bundfuss

See Also

derive_vars_duration()

Examples

data <- tibble::tribble(
  ~BRTHDT, ~RANDDT,
  lubridate::ymd("1984-09-06"), lubridate::ymd("2020-02-24")
)

derive_vars_aage(data)

epijim/admiral documentation built on Feb. 13, 2022, 12:15 a.m.