getEntryID-methods {KEGGgraph} | R Documentation

## Get entry ID for single or list of KEGGNode or KEGGedge object(s)

### Description

The method extracts EntryIDs from `KEGGNode-class` or `KEGGEdge-class` object(s).

In case of `KEGGEdge-class` objects, the entryID of the nodes involved in the binary are returned as a vector in the order specified by the direction of the relation, that is, if the edge is defined as A->B, then the entryID returned from the edge equals to c(getEntryID(A), getEntryID(B)).

### Methods

obj = "KEGGEdge"
  Object of `KEGGEdge-class`
obj = "list"
  A wrapper for list of `KEGGNode-class` or `KEGGEdge-class` objects

### Author(s)

Jitao David Zhang mailto:j.zhang@dkfz.de

### References

KGML Document Manual http://www.genome.jp/kegg/docs/xml/

### Examples

    sfile <- system.file("extdata/hsa04010.xml",package="KEGGgraph")
    pathway <- parseKGML(sfile)

    nodes <- nodes(pathway)
    node <- nodes[[7]]
    getEntryID(node)

    edges <- edges(pathway)
    edge <- edges[[7]]
    getEntryID(edge)

    getEntryID(nodes[1:4])
    getEntryID(edges[1:4])

[Package KEGGgraph version 1.1.0 Index]