EVOLUTION-MANAGER
Edit File: colsplit.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: Split a vector into multiple columns</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 colsplit {reshape2}"><tr><td>colsplit {reshape2}</td><td style="text-align: right;">R Documentation</td></tr></table> <h2>Split a vector into multiple columns</h2> <h3>Description</h3> <p>Useful for splitting variable names that a combination of multiple variables. Uses <code><a href="../../utils/html/type.convert.html">type.convert</a></code> to convert each column to correct type, but will not convert character to factor. </p> <h3>Usage</h3> <pre> colsplit(string, pattern, names) </pre> <h3>Arguments</h3> <table summary="R argblock"> <tr valign="top"><td><code>string</code></td> <td> <p>character vector or factor to split up</p> </td></tr> <tr valign="top"><td><code>pattern</code></td> <td> <p>regular expression to split on</p> </td></tr> <tr valign="top"><td><code>names</code></td> <td> <p>names for output columns</p> </td></tr> </table> <h3>Examples</h3> <pre> x <- c("a_1", "a_2", "b_2", "c_3") vars <- colsplit(x, "_", c("trt", "time")) vars str(vars) </pre> <hr /><div style="text-align: center;">[Package <em>reshape2</em> version 1.4.4 <a href="00Index.html">Index</a>]</div> </body></html>