twoway.formula

A formula of the form <code>response ~ rowvar + colvar</code>, where <code>response</code> is numeric

formula

The name of the data set, containing a row vector, column factor and a numeric response

data

An expression to subset the data (unused)

subset

na.action

The formula method reshapes the data set from long to wide format and calls the default method.

Carries out analyses of two-way tables with one observation per cell, together with graphical displays
for an additive fit and
a diagnostic plot for removable 'non-additivity' via a power transformation of the response.
It implements Tukey's Exploratory Data Analysis (1973) <ISBN: 978-0201076165> methods, including a
1-degree-of-freedom test for row*column 'non-additivity', linear in the row and column effects.

Michael Friendly

twoway

Analysis of Two-Way Tables

John Fox

twoway.formula function

<dl><dt>formula</dt>
<dd>A formula of the form <code>response ~ rowvar + colvar</code>, where <code>response</code> is numeric</dd>
<dt>data</dt>
<dd>The name of the data set, containing a row vector, column factor and a numeric response</dd>
<dt>subset</dt>
<dd>An expression to subset the data (unused)</dd>
<dt>na.action</dt>
<dd>What to do with NAs? (unused)</dd>
<dt>...</dt>
<dd>other arguments, passed down</dd></dl>

Arguments

Michael Friendly and Richard Heiberger

Author

Formula method for twoway analysis using a dataset in long format — twoway.formula

<dl>

<dt>formula</dt>
<dd>A formula of the form <code>response ~ rowvar + colvar</code>, where <code>response</code> is numeric</dd>


<dt>data</dt>
<dd>The name of the data set, containing a row vector, column factor and a numeric response</dd>


<dt>subset</dt>
<dd>An expression to subset the data (unused)</dd>


<dt>na.action</dt>
<dd>What to do with NAs? (unused)</dd>


<dt>...</dt>
<dd>other arguments, passed down</dd>

</dl>

twoway.formula: Formula method for twoway analysis using a dataset in long format

Description

Usage

Arguments

Author

References

Examples