EVOLUTION-MANAGER
Edit File: loess.control.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: Set Parameters for Loess</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 loess.control {stats}"><tr><td>loess.control {stats}</td><td style="text-align: right;">R Documentation</td></tr></table> <h2>Set Parameters for Loess</h2> <h3>Description</h3> <p>Set control parameters for <code>loess</code> fits. </p> <h3>Usage</h3> <pre> loess.control(surface = c("interpolate", "direct"), statistics = c("approximate", "exact", "none"), trace.hat = c("exact", "approximate"), cell = 0.2, iterations = 4, iterTrace = FALSE, ...) </pre> <h3>Arguments</h3> <table summary="R argblock"> <tr valign="top"><td><code>surface</code></td> <td> <p>should the fitted surface be computed exactly (<code>"direct"</code>) or via interpolation from a kd tree? Can be abbreviated.</p> </td></tr> <tr valign="top"><td><code>statistics</code></td> <td> <p>should the statistics be computed exactly, approximately or not at all? Exact computation can be very slow. Can be abbreviated.</p> </td></tr> <tr valign="top"><td><code>trace.hat</code></td> <td> <p>Only for the (default) case <code>(surface = "interpolate", statistics = "approximate")</code>: should the trace of the smoother matrix be computed exactly or approximately? It is recommended to use the approximation for more than about 1000 data points. Can be abbreviated.</p> </td></tr> <tr valign="top"><td><code>cell</code></td> <td> <p>if interpolation is used this controls the accuracy of the approximation via the maximum number of points in a cell in the kd tree. Cells with more than <code>floor(n*span*cell)</code> points are subdivided.</p> </td></tr> <tr valign="top"><td><code>iterations</code></td> <td> <p>the number of iterations used in robust fitting, i.e. only if <code>family</code> is <code>"symmetric"</code>.</p> </td></tr> <tr valign="top"><td><code>iterTrace</code></td> <td> <p>logical (or integer) determining if tracing information during the robust iterations (<code>iterations</code><i>>= 2</i>) is produced.</p> </td></tr> <tr valign="top"><td><code>...</code></td> <td> <p>further arguments which are ignored.</p> </td></tr> </table> <h3>Value</h3> <p>A list with components </p> <table summary="R valueblock"> <tr valign="top"><td><code>surface</code></td> <td> </td></tr> <tr valign="top"><td><code>statistics</code></td> <td> </td></tr> <tr valign="top"><td><code>trace.hat</code></td> <td> </td></tr> <tr valign="top"><td><code>cell</code></td> <td> </td></tr> <tr valign="top"><td><code>iterations</code></td> <td> </td></tr> <tr valign="top"><td><code>iterTrace</code></td> <td> </td></tr> </table> <p>with meanings as explained under ‘Arguments’. </p> <h3>See Also</h3> <p><code><a href="loess.html">loess</a></code></p> <hr /><div style="text-align: center;">[Package <em>stats</em> version 3.6.0 <a href="00Index.html">Index</a>]</div> </body></html>