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kangar00 (version 1.4.2)

get_network_matrix: Function to calculate the network matrix for a pathway object

Description

get_network_matrix creates the adjacency matrix representing the gene-gene interaction structure within a particular pathway. Note that a KEGG kgml file is downloaded and saved in the working directory.

Usage

# S4 method for pathway
get_network_matrix(object, directed = TRUE, method = "auto")

Value

get_network_matrix returns the modified pathway object, where the slots adj and sign are altered according to the downloaded information in the KEGG kgml file.

Arguments

object

A pathway object identifying the pathway for which gene interaction infomation should be extracted. Here, KEGG IDs of format 'hsa00100' are used and information is downloaded from the KEGG database.

directed

A logical argument, stating whether the network matrix should return directed (TRUE) or undirected (FALSE) links.

method

Download method to be used for downloading files, passed to via KEGGgraph::retrieveKGML to utils::download.file function. Currently supports 'auto' (default), 'internal', 'wininet' (Windows only), 'libcurl', 'wget' and 'curl'.

Author

Stefanie Friedrichs, Patricia Burger, Juliane Manitz