eulerian: Method for finding an eulerian path or cycle.
In eulerian: eulerian: A package to find eulerian paths from graphs

Description Usage Arguments Details Value Author(s) Examples

An eulerian path is a path in a graph which visits every edge exactly once. This function returns an eulerian path from a graph (if there is any). It works for both directed and undirected graphs.

1	eulerian(graph, start = NULL)

`graph`	a `graphNEL` object.
`start`	`character` or `NULL`. The name of the start node of an eulerian path.

If start is not NULL, then eulerian returns a path starting from it. Otherwise, the start node is automatically selected.

A character vector representing an eulerian path/cycle in graph. Each entry in the vector represents the name of a node in the graph.

Ashis Saha

	require(graph)
	require(eulerian)
	g <- new("graphNEL", nodes=LETTERS[1:4], edgemode="uirected")
	g <- addEdge(graph=g, from=LETTERS[1:3], to=LETTERS[2:4])
	ep <- eulerian(g)
	
	g <- new("graphNEL", nodes=as.character(1:10), edgemode="directed")
	g <- addEdge(graph=g, from=c("1","2","2","3","4","5","6","6","7","8","9","10"), 
			to=c("10","1","6","2","2","4","5","8","9","7","6","3"))
	ep <- eulerian(g, "6")

Loading required package: graph
Loading required package: BiocGenerics
Loading required package: parallel

Attaching package: 'BiocGenerics'

The following objects are masked from 'package:parallel':

    clusterApply, clusterApplyLB, clusterCall, clusterEvalQ,
    clusterExport, clusterMap, parApply, parCapply, parLapply,
    parLapplyLB, parRapply, parSapply, parSapplyLB

The following objects are masked from 'package:stats':

    IQR, mad, sd, var, xtabs

The following objects are masked from 'package:base':

    Filter, Find, Map, Position, Reduce, anyDuplicated, append,
    as.data.frame, cbind, colMeans, colSums, colnames, do.call,
    duplicated, eval, evalq, get, grep, grepl, intersect, is.unsorted,
    lapply, lengths, mapply, match, mget, order, paste, pmax, pmax.int,
    pmin, pmin.int, rank, rbind, rowMeans, rowSums, rownames, sapply,
    setdiff, sort, table, tapply, union, unique, unsplit, which,
    which.max, which.min