Data from a longitudinal study examining the effectiveness of Methylprednisolone
as a treatment for patients with severe alcoholic hepatitis. Subjects were
randomly assigned to a treatment (31 received a placebo, 35 received the 
treatment) and serum bilirubin was measures each week for four weeks.

datasets

A suite of diagnostic tools for hierarchical
(multilevel) linear models. The tools include
not only leverage and traditional deletion diagnostics (Cook's
distance, covratio, covtrace, and MDFFITS) but also
convenience functions and graphics for residual analysis. Models
can be fit using either lmer in the 'lme4' package or lme in the 'nlme' package.

Adam Loy

HLMdiag

Diagnostic Tools for Hierarchical (Multilevel) Linear Models

Jaylin Lowe

Jack Moran

ahd function

A data frame with 330 observations on the following 5 variables:<dl class="dl-horizontal">
<dt>treatment</dt><dd>The treatment a subject received - a factor. Levels are
<code>placebo</code> and <code>treated</code>.</dd>
<dt>subject</dt><dd>Subject ID - a factor.</dd>
<dt>week</dt><dd>Week of the study (0--4) - the time variable.</dd>
<dt>sbvalue</dt><dd>Serum bilirubin level (in \(\mu\)mol/L).</dd>
<dt>baseline</dt><dd>A subject's serum bilirubin level at week 0.</dd>
</dl>

Format

Methylprednisolone data — ahd

A data frame with 330 observations on the following 5 variables:<dl class='dl-horizontal'>
<dt>treatment</dt><dd>The treatment a subject received - a factor. Levels are
<code>placebo</code> and <code>treated</code>.</dd>
<dt>subject</dt><dd>Subject ID - a factor.</dd>
<dt>week</dt><dd>Week of the study (0--4) - the time variable.</dd>
<dt>sbvalue</dt><dd>Serum bilirubin level (in \(\mu\)mol/L).</dd>
<dt>baseline</dt><dd>A subject's serum bilirubin level at week 0.</dd>
</dl>

ahd: Methylprednisolone data

Description

Usage

Arguments

Format

References