Create a graph object of class loongraph

The loongraph class provides a simple alternative to the graph class to create common graphs that are useful for use as navigation graphs.

loongraph(nodes, from = character(0), to = character(0),
  isDirected = FALSE)

Arguments

nodes	a character vector with node names, each element defines a node hence the elements need to be unique
from	a character vector with node names, each element defines an edge
to	a character vector with node names, each element defines an edge
isDirected	boolean scalar, defines whether from and to define directed edges

Value

graph object of class loongraph

Details

loongraph objects can be converted to graph objects (i.e. objects of class graph which is defined in the graph package) with the as.graph function.

For more information run: l_help("learn_R_display_graph.html.html#graph-utilities")

See also

completegraph, linegraph, complement, as.graph

Examples

g <- loongraph(
  nodes = c("A", "B", "C", "D"),
  from = c("A", "A", "B", "B", "C"),
  to   = c("B", "C", "C", "D", "D")
)

if (FALSE) {
# create a loon graph plot
p <- l_graph(g)
}

lg <- linegraph(g)