check_file_exists {gtfsio} | R Documentation |
Check the existence of text files in a GTFS object
Description
Checks the existence of elements inside a GTFS object that represent specific GTFS text files.
Usage
check_file_exists(x, files)
assert_file_exists(x, files)
Arguments
x |
A GTFS object. |
files |
A character vector. The files to check the existence of. |
Value
check_file_exists
returns TRUE
if the check is successful, and
FALSE
otherwise.
assert_file_exists
returns x
invisibly if the check is
successful, and throws an error otherwise.
See Also
Other checking functions:
check_field_class()
,
check_field_exists()
Examples
gtfs_path <- system.file("extdata/ggl_gtfs.zip", package = "gtfsio")
gtfs <- import_gtfs(gtfs_path)
check_file_exists(gtfs, c("calendar", "agency"))
check_file_exists(gtfs, c("calendar", "oi"))
[Package gtfsio version 1.1.1 Index]