EVOLUTION-MANAGER
Edit File: tail_of.html
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><title>R: Tails of the edge(s) in a graph</title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <link rel="stylesheet" type="text/css" href="R.css" /> </head><body> <table width="100%" summary="page for tail_of {igraph}"><tr><td>tail_of {igraph}</td><td style="text-align: right;">R Documentation</td></tr></table> <h2>Tails of the edge(s) in a graph</h2> <h3>Description</h3> <p>For undirected graphs, head and tail is not defined. In this case <code>tail_of</code> returns vertices incident to the supplied edges, and <code>head_of</code> returns the other end(s) of the edge(s). </p> <h3>Usage</h3> <pre> tail_of(graph, es) </pre> <h3>Arguments</h3> <table summary="R argblock"> <tr valign="top"><td><code>graph</code></td> <td> <p>The input graph.</p> </td></tr> <tr valign="top"><td><code>es</code></td> <td> <p>The edges to query.</p> </td></tr> </table> <h3>Value</h3> <p>A vertex sequence with the tail(s) of the edge(s). </p> <h3>See Also</h3> <p>Other structural queries: <code><a href="sub-.igraph.html">[.igraph</a>()</code>, <code><a href="sub-sub-.igraph.html">[[.igraph</a>()</code>, <code><a href="adjacent_vertices.html">adjacent_vertices</a>()</code>, <code><a href="are_adjacent.html">are_adjacent</a>()</code>, <code><a href="ends.html">ends</a>()</code>, <code><a href="get.edge.ids.html">get.edge.ids</a>()</code>, <code><a href="gorder.html">gorder</a>()</code>, <code><a href="gsize.html">gsize</a>()</code>, <code><a href="head_of.html">head_of</a>()</code>, <code><a href="incident_edges.html">incident_edges</a>()</code>, <code><a href="incident.html">incident</a>()</code>, <code><a href="is_directed.html">is_directed</a>()</code>, <code><a href="neighbors.html">neighbors</a>()</code> </p> <hr /><div style="text-align: center;">[Package <em>igraph</em> version 1.3.5 <a href="00Index.html">Index</a>]</div> </body></html>