EVOLUTION-MANAGER
Edit File: Spruce.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: Growth of Spruce Trees</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 Spruce {nlme}"><tr><td>Spruce {nlme}</td><td style="text-align: right;">R Documentation</td></tr></table> <h2>Growth of Spruce Trees</h2> <h3>Description</h3> <p>The <code>Spruce</code> data frame has 1027 rows and 4 columns. </p> <h3>Format</h3> <p>This data frame contains the following columns: </p> <dl> <dt>Tree</dt><dd> <p>a factor giving a unique identifier for each tree. </p> </dd> <dt>days</dt><dd> <p>a numeric vector giving the number of days since the beginning of the experiment. </p> </dd> <dt>logSize</dt><dd> <p>a numeric vector giving the logarithm of an estimate of the volume of the tree trunk. </p> </dd> <dt>plot</dt><dd> <p>a factor identifying the plot in which the tree was grown. </p> </dd> </dl> <h3>Details</h3> <p>Diggle, Liang, and Zeger (1994, Example 1.3, page 5) describe data on the growth of spruce trees that have been exposed to an ozone-rich atmosphere or to a normal atmosphere. </p> <h3>Source</h3> <p>Pinheiro, J. C. and Bates, D. M. (2000), <em>Mixed-Effects Models in S and S-PLUS</em>, Springer, New York. (Appendix A.28) </p> <p>Diggle, Peter J., Liang, Kung-Yee and Zeger, Scott L. (1994), <em>Analysis of longitudinal data</em>, Oxford University Press, Oxford. </p> <hr /><div style="text-align: center;">[Package <em>nlme</em> version 3.1-139 <a href="00Index.html">Index</a>]</div> </body></html>