EVOLUTION-MANAGER
Edit File: varComb.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: Combination of Variance Functions</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 varComb {nlme}"><tr><td>varComb {nlme}</td><td style="text-align: right;">R Documentation</td></tr></table> <h2>Combination of Variance Functions</h2> <h3>Description</h3> <p>This function is a constructor for the <code>varComb</code> class, representing a combination of variance functions. The corresponding variance function is equal to the product of the variance functions of the <code>varFunc</code> objects listed in <code>...</code>. </p> <h3>Usage</h3> <pre> varComb(...) </pre> <h3>Arguments</h3> <table summary="R argblock"> <tr valign="top"><td><code>...</code></td> <td> <p>objects inheriting from class <code>varFunc</code> representing variance function structures.</p> </td></tr> </table> <h3>Value</h3> <p>a <code>varComb</code> object representing a combination of variance functions, also inheriting from class <code>varFunc</code>. </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="varClasses.html">varClasses</a></code>, <code><a href="varWeights.html">varWeights.varComb</a></code>, <code><a href="coef.varFunc.html">coef.varComb</a></code></p> <h3>Examples</h3> <pre> vf1 <- varComb(varIdent(form = ~1|Sex), varPower()) </pre> <hr /><div style="text-align: center;">[Package <em>nlme</em> version 3.1-139 <a href="00Index.html">Index</a>]</div> </body></html>