new_cohort_table

new_cohort_table(cdm, name, *, overwrite=True)

Create an empty cohort table in the CDM’s write schema and register it.

Creates tables: name (cohort), name_set (cohort_set), name_attrition (cohort_attrition). Returns the CDM with the new cohort table added.

Parameters

Name	Type	Description	Default
cdm	Cdm (database-backed, from cdm_from_con).		required
name	Table name (lowercase recommended).		required
overwrite	If True, replace existing tables.		True

Returns

Name	Type	Description
	The same Cdm with the new cohort table added.

Raises

Name	Type	Description
	CohortError	If cdm has no database source (e.g. from cdm_from_tables without a backend).