assert_gtfs

Asserts that a GTFS object is valid. Valid objects are those in which:<ul>
<li>Every element is named.</li>
<li>Every element inherits from <code>data.frame</code>s.</li>
</ul>The exception to the second rule are objects that contain an element named
<code>"."</code>. In such case, this element is actually composed by a named list of
elements who inherit from <code>data.frame</code>s.

Tools for the development of packages related to General
Transit Feed Specification (GTFS) files. Establishes a standard for
representing GTFS feeds using R data types. Provides fast and flexible
functions to read and write GTFS feeds while sticking to this
standard. Defines a basic 'gtfs' class which is meant to be extended
by packages that depend on it. And offers utility functions that
support checking the structure of GTFS objects.

Daniel Herszenhut

gtfsio

Read and Write General Transit Feed Specification (GTFS) Files

Flavio Poletti

Mark Padgham

Rafael H. M. Pereira

Tom Buckley

Ipea - Institute for Applied Economic Research 

assert_gtfs function

<dl><dt>x</dt>
<dd>A GTFS object.</dd></dl>

Arguments

Asserts that a GTFS object is valid. Valid objects are those in which:<ul>
<li>Every element is named.</li>
<li>Every element inherits from <code>data.frame</code>s.</li>
</ul>

The exception to the second rule are objects that contain an element named
<code>"."</code>. In such case, this element is actually composed by a named list of
elements who inherit from <code>data.frame</code>s.

GTFS object validator — assert_gtfs

<dl>

<dt>x</dt>
<dd>A GTFS object.</dd>

</dl>

assert_gtfs: GTFS object validator

Description

Usage

Value

Arguments

See Also

Examples