<!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: The intrinsic cumulative survival distribution function for...</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 SurvFn.in.4p"><tr><td>SurvFn.in.4p</td><td style="text-align: right;">R Documentation</td></tr></table> <h2>The intrinsic cumulative survival distribution function for 2-process 4-parameter vitality model</h2> <h3>Description</h3> <p>Gives the cumulative survival proportions at <code>xx</code> from intrinsic process for a given set of parameter values. </p> <h3>Usage</h3> <pre> SurvFn.in.4p(xx, r, s) </pre> <h3>Arguments</h3> <table summary="R argblock"> <tr valign="top"><td><code>xx</code></td> <td> <p>vector of ages</p> </td></tr> <tr valign="top"><td><code>r</code></td> <td> <p>r value</p> </td></tr> <tr valign="top"><td><code>s</code></td> <td> <p>s value</p> </td></tr> </table> <h3>Details</h3> <p>Used within <code>vitality.4p</code> for estimating model parameters based on the observed cumulative survival function.</p> <h3>Value</h3> <p>vector of cumulative survival proportions at <code>xx</code> from intrinsic process </p> <h3>See Also</h3> <p><code>vitality.4p</code>, <code>survProbInc.4p</code>, <code>SurvFn.4p</code>, , <code>SurvFn.ex.4p</code></p> </body></html>