requireInDateRange {CohortConstructor}

Require that an index date is within a date range

Description

requireInDateRange() filters cohort records, keeping only those for which the index date is within the specified date range.

Usage

requireInDateRange(
  cohort,
  dateRange,
  cohortId = NULL,
  indexDate = "cohort_start_date",
  name = tableName(cohort)
)

Arguments

cohort

A cohort table in a cdm reference.

dateRange

A window of time during which the index date must have been observed.

cohortId

IDs of the cohorts to modify. If NULL, all cohorts will be used; otherwise, only the specified cohorts will be modified, and the rest will remain unchanged.

indexDate

Variable in cohort that contains the index date of interest

name

Name of the new cohort with the restriction.

Value

The cohort table with any cohort entries outside of the date range dropped

Examples

library(CohortConstructor)

cdm <- mockCohortConstructor(nPerson = 100)
cdm$cohort1 |>
  requireInDateRange(indexDate = "cohort_start_date",
                     dateRange = as.Date(c("2010-01-01", "2019-01-01")))