EVOLUTION-MANAGER
Edit File: motor.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: Data from a Simulated Motorcycle Accident</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 motor {boot}"><tr><td>motor {boot}</td><td style="text-align: right;">R Documentation</td></tr></table> <h2> Data from a Simulated Motorcycle Accident </h2> <h3>Description</h3> <p>The <code>motor</code> data frame has 94 rows and 4 columns. The rows are obtained by removing replicate values of <code>time</code> from the dataset <code><a href="../../MASS/html/mcycle.html">mcycle</a></code>. Two extra columns are added to allow for strata with a different residual variance in each stratum. </p> <h3>Usage</h3> <pre> motor </pre> <h3>Format</h3> <p>This data frame contains the following columns: </p> <dl> <dt><code>times</code></dt><dd> <p>The time in milliseconds since impact. </p> </dd> <dt><code>accel</code></dt><dd> <p>The recorded head acceleration (in g). </p> </dd> <dt><code>strata</code></dt><dd> <p>A numeric column indicating to which of the three strata (numbered 1, 2 and 3) the observations belong. </p> </dd> <dt><code>v</code></dt><dd> <p>An estimate of the residual variance for the observation. <code>v</code> is constant within the strata but a different estimate is used for each of the three strata. </p> </dd></dl> <h3>Source</h3> <p>The data were obtained from </p> <p>Silverman, B.W. (1985) Some aspects of the spline smoothing approach to non-parametric curve fitting. <em>Journal of the Royal Statistical Society, B</em>, <b>47</b>, 1–52. </p> <h3>References</h3> <p>Davison, A.C. and Hinkley, D.V. (1997) <em>Bootstrap Methods and Their Application</em>. Cambridge University Press. </p> <p>Venables, W.N. and Ripley, B.D. (1994) <em>Modern Applied Statistics with S-Plus</em>. Springer-Verlag. </p> <h3>See Also</h3> <p><code><a href="../../MASS/html/mcycle.html">mcycle</a></code> </p> <hr /><div style="text-align: center;">[Package <em>boot</em> version 1.3-22 <a href="00Index.html">Index</a>]</div> </body></html>