get_transition: Compute a transition matrix from an adjacency matrix.

In gi0na/adjConvertR: Handle and Manipulate Adjacency Matrices

Description

This method take an adjacency matrix (dense or sparse), and returns the corresponding transition matrix in the same format. If the optional argument 'directed' is specified to be FALSE, then before computing the transition matrix the adjacency matrix is forced be symmetric.

Usage

get_transition(adj, directed = NULL, ...)

## S3 method for class 'matrix'
get_transition(adj, directed = NULL, ...)

## S3 method for class 'dgTMatrix'
get_transition(adj, directed = NULL, ...)

## S3 method for class 'dgCMatrix'
get_transition(adj, directed = NULL, ...)

## S3 method for class 'sparseMatrix'
get_transition(adj, directed = NULL, ...)

## Default S3 method:
get_transition(adj, directed = NULL, ...)

Arguments

adj	adjacency matrix, either dense or sparse
directed	boolean, optional argument specifying if the matrix refers to a directed graph.
...	additional parameters to and from the main method. Currently not used.

Value

A transition matrix in the same format of 'adj'.

Examples

el <- data.frame(from= c('a','b','b','c','d','d'),
                to  = c('b','c','d','a','b','a'),
                attr= c( 12, 6, 12 , 6 , 6 , 6 ))
adj <- el2adj(el)
t_mat <- get_transition(adj)

gi0na/adjConvertR documentation built on Jan. 7, 2022, 4:48 a.m.