Burt

The <code>Burt</code> data frame has 27 rows and 4 columns.
The ``data'' were simply (and notoriously) manufactured. The
same data are in the dataset ``twins" in the <code>alr3</code>
package, but with different labels.

datasets


Functions and Datasets to Accompany J. Fox and S. Weisberg,
An R Companion to Applied Regression, Second Edition, Sage, 2011.

John Fox

Companion to Applied Regression

Sanford Weisberg

Daniel Adler

Douglas Bates

Gabriel Baud-Bovy

Steve Ellison

David Firth

Michael Friendly

Gregor Gorjanc

Spencer Graves

Richard Heiberger

Rafael Laboissiere

Georges Monette

Duncan Murdoch

Henric Nilsson

Derek Ogle

Brian Ripley

William Venables

David Winsemius

Achim Zeileis

R-Core 

Burt function

This data frame contains the following columns:<dl class="dl-horizontal">
 <dt>IQbio</dt><dd>IQ of twin raised by biological parents</dd>
 <dt>IQfoster</dt><dd>IQ of twin raised by foster parents</dd>
 <dt>class</dt><dd>A factor with levels (note: out of order):
 <code>high</code>;
 <code>low</code>;
 <code>medium</code>.</dd>
 </dl>

Format

Fraudulent Data on IQs of Twins Raised Apart — Burt

This data frame contains the following columns:<dl class='dl-horizontal'>
 <dt>IQbio</dt><dd>IQ of twin raised by biological parents</dd>
 <dt>IQfoster</dt><dd>IQ of twin raised by foster parents</dd>
 <dt>class</dt><dd>A factor with levels (note: out of order):
 <code>high</code>;
 <code>low</code>;
 <code>medium</code>.</dd>
 </dl>

Fraudulent Data on IQs of Twins Raised Apart

Burt: Fraudulent Data on IQs of Twins Raised Apart

Description

Usage

Arguments

Format