predicate-graph

is_dag

An adjacency <code><a rd-options="" href="/link/matrix?package=arkhe&version=0.5.0" data-mini-rdoc="arkhe::matrix">matrix</a></code> to be tested.

<code>is_dag()</code> checks if a graph has a topological ordering (i.e. is a directed
acyclic graph) using Kahn's algorithm.

internal

A collection of classes that represent
archaeological data. This package provides a set of S4 classes that
represent different special types of matrix (absolute/relative
frequency, presence/absence data, co-occurrence matrix, etc.) upon
which package developers can build subclasses. It also provides a set
of generic methods (mutators and coercion mechanisms) and functions
(e.g. summary statistics, predicates). In addition, a few classes of
general interest (e.g. that represent stratigraphic relationships)
are implemented.

Nicolas Frerebeau

arkhe

Representation of Archaeological Data

Brice Lebrun

predicate-graph function

<dl><dt>x</dt>
<dd>An adjacency <code><a href="/link/matrix?package=arkhe&version=0.5.0" data-mini-rdoc="arkhe::matrix">matrix</a></code> to be tested.</dd></dl>

Arguments

Graph Predicates — predicate-graph

<dl>

<dt>x</dt>
<dd>An adjacency <code><a href='https://rdrr.io/r/base/matrix.html'>matrix</a></code> to be tested.</dd>

</dl>

predicate-graph: Graph Predicates

Description

Usage

Value

Arguments

References

See Also