trav_in_node {DiagrammeR}R Documentation

Traverse from one or more selected edges toward adjacent inward nodes

Description

From a graph object of class dgr_graph move to adjacent nodes from a selection of one or more selected edges where the edges are inward edges to those nodes. This creates a selection of nodes. An optional filter by node attribute can limit the set of nodes traversed to.

Usage

trav_in_node(graph, node_attr = NULL, match = NULL)

Arguments

graph

a graph object of class dgr_graph that is created using create_graph.

node_attr

an optional character vector of node attribute values for filtering the node ID values returned.

match

an option to provide a logical expression with a comparison operator (>, <, ==, or !=) followed by a number for numerical filtering, or, a character string for filtering the edges returned through string matching.

Value

a graph object of class dgr_graph.


[Package DiagrammeR version 0.8.2 Index]