CohortConstructor (version 0.3.5)

unionCohorts: Generate cohort from the union of different cohorts

Description

unionCohorts() combines different cohort entries, with those records that overlap combined and kept. Cohort entries are when an individual was in either of the cohorts.

Usage

unionCohorts(
  cohort,
  cohortId = NULL,
  gap = 0,
  cohortName = NULL,
  keepOriginalCohorts = FALSE,
  name = tableName(cohort)
)

Value

A cohort table.

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.

gap

Number of days between two subsequent cohort entries to be merged in a single cohort record.

cohortName

Name of the returned cohort. If NULL, the cohort name will be created by collapsing the individual cohort names, separated by "_".

keepOriginalCohorts

If TRUE the original cohorts will be return together with the new ones. If FALSE only the new cohort will be returned.

name

Name of the new cohort table created in the cdm object.

Examples

# \donttest{
library(CohortConstructor)

cdm <- mockCohortConstructor(nPerson = 100)

cdm$cohort2 <- cdm$cohort2 |> unionCohorts()
settings(cdm$cohort2)

# }