EVOLUTION-MANAGER
Edit File: Initialize.corStruct.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: Initialize corStruct Object</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 Initialize.corStruct {nlme}"><tr><td>Initialize.corStruct {nlme}</td><td style="text-align: right;">R Documentation</td></tr></table> <h2>Initialize corStruct Object</h2> <h3>Description</h3> <p>This method initializes <code>object</code> by evaluating its associated covariate(s) and grouping factor, if any is present, in <code>data</code>, calculating various dimensions and constants used by optimization algorithms involving <code>corStruct</code> objects (see the appropriate <code>Dim</code> method documentation), and assigning initial values for the coefficients in <code>object</code>, if none were present. </p> <h3>Usage</h3> <pre> ## S3 method for class 'corStruct' Initialize(object, data, ...) </pre> <h3>Arguments</h3> <table summary="R argblock"> <tr valign="top"><td><code>object</code></td> <td> <p>an object inheriting from class <code>"<a href="corClasses.html">corStruct</a>"</code> representing a correlation structure.</p> </td></tr> <tr valign="top"><td><code>data</code></td> <td> <p>a data frame in which to evaluate the variables defined in <code>formula(object)</code>.</p> </td></tr> <tr valign="top"><td><code>...</code></td> <td> <p>this argument is included to make this method compatible with the generic.</p> </td></tr> </table> <h3>Value</h3> <p>an initialized object with the same class as <code>object</code> representing a correlation structure. </p> <h3>Author(s)</h3> <p>José Pinheiro and Douglas Bates <a href="mailto:bates@stat.wisc.edu">bates@stat.wisc.edu</a></p> <h3>References</h3> <p>Pinheiro, J.C., and Bates, D.M. (2000) "Mixed-Effects Models in S and S-PLUS", Springer. </p> <h3>See Also</h3> <p><code><a href="Dim.corStruct.html">Dim.corStruct</a></code></p> <h3>Examples</h3> <pre> cs1 <- corAR1(form = ~ 1 | Subject) cs1 <- Initialize(cs1, data = Orthodont) </pre> <hr /><div style="text-align: center;">[Package <em>nlme</em> version 3.1-139 <a href="00Index.html">Index</a>]</div> </body></html>