EVOLUTION-MANAGER
Edit File: rats2.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: Rat data from Gail et al.</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 rats2 {survival}"><tr><td>rats2 {survival}</td><td style="text-align: right;">R Documentation</td></tr></table> <h2>Rat data from Gail et al.</h2> <h3>Description</h3> <p>48 rats were injected with a carcinogen, and then randomized to either drug or placebo. The number of tumors ranges from 0 to 13; all rats were censored at 6 months after randomization. </p> <h3>Usage</h3> <pre>rats2</pre> <h3>Format</h3> <table summary="Rd table"> <tr> <td style="text-align: left;"> rat:</td><td style="text-align: left;"> id</td> </tr> <tr> <td style="text-align: left;"> trt:</td><td style="text-align: left;"> treatment,(1=drug, 0=control) </td> </tr> <tr> <td style="text-align: left;"> observation:</td><td style="text-align: left;"> within rat</td> </tr> <tr> <td style="text-align: left;"> start:</td><td style="text-align: left;"> entry time</td> </tr> <tr> <td style="text-align: left;"> stop:</td><td style="text-align: left;"> exit time</td> </tr> <tr> <td style="text-align: left;"> status:</td><td style="text-align: left;"> event status, 1=tumor, 0=censored</td> </tr> <tr> <td style="text-align: left;"> </td> </tr> </table> <h3>Source</h3> <p>MH Gail, TJ Santner, and CC Brown (1980), An analysis of comparative carcinogenesis experiments based on multiple times to tumor. <em>Biometrics</em> <b>36</b>, 255–266. </p> <hr /><div style="text-align: center;">[Package <em>survival</em> version 2.44-1.1 <a href="00Index.html">Index</a>]</div> </body></html>