predicate-graph

is_dag

An adjacency <code><a rd-options="" href="/link/matrix?package=arkhe&version=0.2.2" 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
extend the basic matrix data type (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.
predicates). In addition, a few classes of general interest (e.g. that
represent stratigraphic relationships) are implemented.

Nicolas Frerebeau

arkhe

Representation of Archaeological Data

predicate-graph function

An adjacency <code><a rd-options='' href='matrix'>matrix</a></code> to be tested.

predicate-graph: Graph Predicates

Description

Usage

Arguments

Value

References

See Also