EVOLUTION-MANAGER
Edit File: cocitation.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: Cocitation coupling</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 cocitation {igraph}"><tr><td>cocitation {igraph}</td><td style="text-align: right;">R Documentation</td></tr></table> <h2>Cocitation coupling</h2> <h3>Description</h3> <p>Two vertices are cocited if there is another vertex citing both of them. <code>cocitation</code> simply counts how many types two vertices are cocited. The bibliographic coupling of two vertices is the number of other vertices they both cite, <code>bibcoupling</code> calculates this. </p> <h3>Usage</h3> <pre> cocitation(graph, v = V(graph)) </pre> <h3>Arguments</h3> <table summary="R argblock"> <tr valign="top"><td><code>graph</code></td> <td> <p>The graph object to analyze</p> </td></tr> <tr valign="top"><td><code>v</code></td> <td> <p>Vertex sequence or numeric vector, the vertex ids for which the cocitation or bibliographic coupling values we want to calculate. The default is all vertices.</p> </td></tr> </table> <h3>Details</h3> <p><code>cocitation</code> calculates the cocitation counts for the vertices in the <code>v</code> argument and all vertices in the graph. </p> <p><code>bibcoupling</code> calculates the bibliographic coupling for vertices in <code>v</code> and all vertices in the graph. </p> <p>Calculating the cocitation or bibliographic coupling for only one vertex costs the same amount of computation as for all vertices. This might change in the future. </p> <h3>Value</h3> <p>A numeric matrix with <code>length(v)</code> lines and <code>vcount(graph)</code> columns. Element <code>(i,j)</code> contains the cocitation or bibliographic coupling for vertices <code>v[i]</code> and <code>j</code>. </p> <h3>Author(s)</h3> <p>Gabor Csardi <a href="mailto:csardi.gabor@gmail.com">csardi.gabor@gmail.com</a> </p> <h3>Examples</h3> <pre> g <- make_kautz_graph(2,3) cocitation(g) bibcoupling(g) </pre> <hr /><div style="text-align: center;">[Package <em>igraph</em> version 1.3.5 <a href="00Index.html">Index</a>]</div> </body></html>