translate_route_type: Translate a route type input into a numerical route type

In ptvapi: Access the 'Public Transport Victoria' Timetable API

Translate a route type input into a numerical route type

Description

Many API calls require a route type (eg. "Tram" or "Train"). These must be provided as integers, which are translated to route type descriptions with the 'route_types() function/API call. This function will:

• Translate a case-insensitive description such as "Tram" or "Train" to the corresponding route type code

• Check a given integer to see if it is a valid route type code, returning it if so and erroring otherwise

• Return NULL on NULL input

This function is not vectorised.

Usage

translate_route_type(
  route_type,
  user_id = determine_user_id(),
  api_key = determine_api_key()
)

Arguments

route_type	A route type which can be provided either as a non-negative integer code, or as a character: "Tram", "Train", "Bus", "Vline" or "Night Bus". Character inputs are not case-sensitive. Use the route_types function to extract a vector of all route types.
user_id	Integer or character. A user ID or devid provided by Public Transport Victoria. Refer to ?ptvapi for more details.
api_key	Character. An API key, with dashes, provided by Public Transport Victoria. Refer to ?ptvapi for more details.

Value

An integer route type code, or NULL if the input is NULL

ptvapi documentation built on Aug. 15, 2022, 5:09 p.m.