EVOLUTION-MANAGER
Edit File: bdf.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: Language scores</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 bdf {nlme}"><tr><td>bdf {nlme}</td><td style="text-align: right;">R Documentation</td></tr></table> <h2>Language scores</h2> <h3>Description</h3> <p>The <code>bdf</code> data frame has 2287 rows and 25 columns of language scores from grade 8 pupils in elementary schools in The Netherlands. </p> <h3>Usage</h3> <pre>data(bdf)</pre> <h3>Format</h3> <dl> <dt>schoolNR</dt><dd><p>a factor denoting the school.</p> </dd> <dt>pupilNR</dt><dd><p>a factor denoting the pupil.</p> </dd> <dt>IQ.verb</dt><dd><p>a numeric vector of verbal IQ scores</p> </dd> <dt>IQ.perf</dt><dd><p>a numeric vector of IQ scores.</p> </dd> <dt>sex</dt><dd><p>Sex of the student.</p> </dd> <dt>Minority</dt><dd><p>a factor indicating if the student is a member of a minority group.</p> </dd> <dt>repeatgr</dt><dd><p>an ordered factor indicating if one or more grades have been repeated.</p> </dd> <dt>aritPRET</dt><dd><p>a numeric vector</p> </dd> <dt>classNR</dt><dd><p>a numeric vector</p> </dd> <dt>aritPOST</dt><dd><p>a numeric vector</p> </dd> <dt>langPRET</dt><dd><p>a numeric vector</p> </dd> <dt>langPOST</dt><dd><p>a numeric vector</p> </dd> <dt>ses</dt><dd><p>a numeric vector of socioeconomic status indicators.</p> </dd> <dt>denomina</dt><dd><p>a factor indicating of the school is a public school, a Protestant private school, a Catholic private school, or a non-denominational private school.</p> </dd> <dt>schoolSES</dt><dd><p>a numeric vector</p> </dd> <dt>satiprin</dt><dd><p>a numeric vector</p> </dd> <dt>natitest</dt><dd><p>a factor with levels <code>0</code> and <code>1</code></p> </dd> <dt>meetings</dt><dd><p>a numeric vector</p> </dd> <dt>currmeet</dt><dd><p>a numeric vector</p> </dd> <dt>mixedgra</dt><dd><p>a factor indicating if the class is a mixed-grade class.</p> </dd> <dt>percmino</dt><dd><p>a numeric vector</p> </dd> <dt>aritdiff</dt><dd><p>a numeric vector</p> </dd> <dt>homework</dt><dd><p>a numeric vector</p> </dd> <dt>classsiz</dt><dd><p>a numeric vector</p> </dd> <dt>groupsiz</dt><dd><p>a numeric vector</p> </dd> </dl> <h3>Source</h3> <p><span class="samp">http://stat.gamma.rug.nl/snijders/multilevel.htm</span>, the first edition of <a href="http://www.stats.ox.ac.uk/~snijders/mlbook.htm">http://www.stats.ox.ac.uk/~snijders/mlbook.htm</a>. </p> <h3>References</h3> <p>Snijders, Tom and Bosker, Roel (1999), <em>Multilevel Analysis: An Introduction to Basic and Advanced Multilevel Modeling</em>, Sage. </p> <h3>Examples</h3> <pre> summary(bdf) ## More examples, including lme() fits reproducing parts in the above ## book, are available in the R script files system.file("mlbook", "ch04.R", package ="nlme") # and system.file("mlbook", "ch05.R", package ="nlme") </pre> <hr /><div style="text-align: center;">[Package <em>nlme</em> version 3.1-139 <a href="00Index.html">Index</a>]</div> </body></html>