derive_var_trtdurd {admiral}R Documentation

Derive Total Treatment Duration (Days)

Description

Derives total treatment duration (days) (TRTDURD)

Usage

derive_var_trtdurd(dataset, start_date = TRTSDT, end_date = TRTEDT)

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.

Refer to derive_vars_dt() to impute and derive a date from a date character vector to a date object.

Default: TRTSDT

end_date

The end date

A date or date-time object is expected.

Refer to derive_vars_dt() to impute and derive a date from a date character vector to a date object.

Default: TRTEDT

Details

The total treatment duration is derived as the number of days from start to end date plus one.

Value

The input dataset with TRTDURD added

Author(s)

Stefan Bundfuss

See Also

derive_vars_duration()

Date/Time Derivation Functions that returns variable appended to dataset: derive_vars_dtm_to_dt(), derive_vars_dtm_to_tm(), derive_vars_dtm(), derive_vars_dt(), derive_vars_duration(), derive_vars_dy()

Examples

data <- tibble::tribble(
  ~TRTSDT, ~TRTEDT,
  lubridate::ymd("2020-01-01"), lubridate::ymd("2020-02-24")
)

derive_var_trtdurd(data)

[Package admiral version 0.8.4 Index]