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)
)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)
#> Error in UseMethod("settings"): no applicable method for 'settings' applied to an object of class "c('cdm_table', 'GeneratedCohortSet', 'tbl_duckdb_connection', 'tbl_dbi', 'tbl_sql', 'tbl_lazy', 'tbl')"
# }