randomWalk: Performs a Random Walk on a Graph

In RWOAG: Performs a Random Walk on a Graph

Description

Performs random walk on a graph, with a restart probability of 0.7

Usage

randomWalk(intM, queryGenes)

Arguments

intM	adjacency matrix of the graph, or object of graph format containing this matrix
queryGenes	genes with which to seed the random walk

Value

Returns a named vector of visitation probabilities for all nodes in the graph

Author(s)

James Perkins Ian Morilla

Maintainer: James Perkins <[e-mail]>

References

http://www.ncbi.nlm.nih.gov/pubmed/18371930

Examples

    # using a graphNEL object
    set.seed(123)
    V <- letters[1:10]
    M <- 1:4
    g1 <- randomGraph(V, M, 0.5)
    visProbs <- randomWalk(g1, V[1:3])

    # using a graph object
    require(graph)
    zz <- rbind(c(0,1,0,1), c(1,0,0,0), c(0,0,0,1), c(1,0,1,0))
    colnames(zz) = rownames(zz) = letters[1:4]
    visProbs <- randomWalk(zz, V[1])

RWOAG documentation built on May 2, 2019, 6:12 p.m.