juul

The <code>juul</code> data frame has 1339 rows and 6 columns.
 It contains a reference sample of the distribution of insulin-like
 growth factor (IGF-I), one observation per subject in various ages, with the
 bulk of the data collected in connection with school physical
 examinations.

datasets

Data sets and scripts for text examples and exercises in
P. Dalgaard (2008), `Introductory Statistics with R', 2nd ed., Springer Verlag, ISBN 978-0387790534.

Peter Dalgaard

ISwR

Introductory Statistics with R

juul function

This data frame contains the following columns:<dl class="dl-horizontal">
 <dt><code>age</code></dt><dd>a numeric vector (years).</dd>
 <dt><code>menarche</code></dt><dd>a numeric vector. Has menarche occurred (code 1: no, 2: yes)?</dd>
 <dt><code>sex</code></dt><dd>a numeric vector (1: boy, 2: girl).</dd>
 <dt><code>igf1</code></dt><dd>a numeric vector, insulin-like growth factor
 (\(\mu\mathrm{g}/\mathrm{l}\)).</dd>
 <dt><code>tanner</code></dt><dd>a numeric vector, codes 1--5: Stages of puberty ad modum Tanner.</dd>
 <dt><code>testvol</code></dt><dd>a numeric vector, testicular volume (ml).</dd>
 </dl>

Format

Juul's IGF data — juul

This data frame contains the following columns:<dl class='dl-horizontal'>
 <dt><code>age</code></dt><dd>a numeric vector (years).</dd>
 <dt><code>menarche</code></dt><dd>a numeric vector. Has menarche occurred (code 1: no, 2: yes)?</dd>
 <dt><code>sex</code></dt><dd>a numeric vector (1: boy, 2: girl).</dd>
 <dt><code>igf1</code></dt><dd>a numeric vector, insulin-like growth factor
 (\(\mu\mathrm{g}/\mathrm{l}\)).</dd>
 <dt><code>tanner</code></dt><dd>a numeric vector, codes 1--5: Stages of puberty ad modum Tanner.</dd>
 <dt><code>testvol</code></dt><dd>a numeric vector, testicular volume (ml).</dd>
 </dl>

juul: Juul's IGF data

Description

Usage

Arguments

Format

Examples