warn_missing_ids: Warn about ids missing from a table

In gtfstools: General Transit Feed Specification (GTFS) Editing and Analysing Tools

Warn about ids missing from a table

Description

Raises a warning listing the elements of id not found in existing_id. The warning is attributed to the function that called this helper.

Usage

warn_missing_ids(id, existing_id, table, id_name)

Arguments

id	A character vector of ids given by the user.
existing_id	A character vector of the ids that exist in the table.
table	The name of the table, used in the warning message.
id_name	The name of the id field, used in the warning message.

Value

The missing ids, invisibly.

gtfstools documentation built on Oct. 28, 2026, 5:13 p.m.