subsetCohorts: Generate a cohort table keeping a subset of cohorts.

In CohortConstructor: Build and Manipulate Study Cohorts Using a Common Data Model

Generate a cohort table keeping a subset of cohorts.

Description

subsetCohorts() filters an existing cohort table, keeping only the records from cohorts that are specified.

Usage

subsetCohorts(
  cohort,
  cohortId,
  name = tableName(cohort),
  .softValidation = TRUE
)

Arguments

cohort	A cohort table in a cdm reference.
cohortId	Vector identifying which cohorts to include (cohort_definition_id or cohort_name). Cohorts not included will be removed from the cohort set.
name	Name of the new cohort table created in the cdm object.
.softValidation	Whether to perform a soft validation of consistency. If set to FALSE four additional checks will be performed: 1) a check that cohort end date is not before cohort start date, 2) a check that there are no missing values in required columns, 3) a check that cohort duration is all within observation period, and 4) that there are no overlapping cohort entries

Value

Cohort table with only cohorts in cohortId.

Examples

library(CohortConstructor)

cdm <- mockCohortConstructor(nPerson = 100)

cdm$cohort1 |> subsetCohorts(cohortId = 1)

CohortConstructor documentation built on June 8, 2025, 12:49 p.m.