EVOLUTION-MANAGER
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<!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: Huber Proposal 2 Robust Estimator of Location and/or Scale</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 hubers {MASS}"><tr><td>hubers {MASS}</td><td style="text-align: right;">R Documentation</td></tr></table> <h2> Huber Proposal 2 Robust Estimator of Location and/or Scale </h2> <h3>Description</h3> <p>Finds the Huber M-estimator for location with scale specified, scale with location specified, or both if neither is specified. </p> <h3>Usage</h3> <pre> hubers(y, k = 1.5, mu, s, initmu = median(y), tol = 1e-06) </pre> <h3>Arguments</h3> <table summary="R argblock"> <tr valign="top"><td><code>y</code></td> <td> <p>vector y of data values </p> </td></tr> <tr valign="top"><td><code>k</code></td> <td> <p>Winsorizes at <code>k</code> standard deviations </p> </td></tr> <tr valign="top"><td><code>mu</code></td> <td> <p>specified location </p> </td></tr> <tr valign="top"><td><code>s</code></td> <td> <p>specified scale </p> </td></tr> <tr valign="top"><td><code>initmu</code></td> <td> <p>initial value of <code>mu</code> </p> </td></tr> <tr valign="top"><td><code>tol</code></td> <td> <p>convergence tolerance </p> </td></tr></table> <h3>Value</h3> <p>list of location and scale estimates </p> <table summary="R valueblock"> <tr valign="top"><td><code>mu</code></td> <td> <p>location estimate </p> </td></tr> <tr valign="top"><td><code>s</code></td> <td> <p>scale estimate </p> </td></tr></table> <h3>References</h3> <p>Huber, P. J. (1981) <em>Robust Statistics.</em> Wiley. </p> <p>Venables, W. N. and Ripley, B. D. (2002) <em>Modern Applied Statistics with S.</em> Fourth edition. Springer. </p> <h3>See Also</h3> <p><code><a href="huber.html">huber</a></code> </p> <h3>Examples</h3> <pre> hubers(chem) hubers(chem, mu=3.68) </pre> <hr /><div style="text-align: center;">[Package <em>MASS</em> version 7.3-51.4 <a href="00Index.html">Index</a>]</div> </body></html>