Collapse cohort entries using a certain gap to concatenate records.

collapseCohorts() concatenates cohort records, allowing for some number of days between one finishing and the next starting.

Usage

collapseCohorts(
  cohort,
  cohortId = NULL,
  gap = 0,
  name = tableName(cohort),
  .softValidation = FALSE
)

cohort: A cohort table in a cdm reference.
cohortId: Vector identifying which cohorts to modify (cohort_definition_id or cohort_name). If NULL, all cohorts will be used; otherwise, only the specified cohorts will be modified, and the rest will remain unchanged.
gap: Number of days between two subsequent cohort entries to be merged in a single cohort record.
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

A cohort table