byf.shapiro

Performs a Shapiro-Wilk test on a numeric variable per level of a factor.

Contains miscellaneous functions useful in biostatistics, mostly univariate and multivariate testing procedures with a special emphasis on permutation tests. Many functions intend to simplify user's life by shortening existing procedures or by implementing plotting functions that can be used with as many methods from different packages as possible.

Maxime Herve9

RVAideMemoire

Testing and Plotting Procedures for Biostatistics

byf.shapiro function

<dl> <dt>formula</dt>
<dd>a formula of the form <code>a ~ b</code> where <code>a</code> gives the data values and <code>b</code> a factor giving the corresponding groups.</dd> <dt>data</dt>
<dd>an optional data frame containing the variables in the formula <code>formula</code>. By default the variables are taken from <code>environment(formula)</code>.</dd></dl>

Arguments

Maxime HERVE &lt;maxime.herve@univ-rennes1.fr&gt;

Author

Shapiro-Wilk test for factor levels — byf.shapiro

<dl>

 <dt>formula</dt>
<dd>a formula of the form <code>a ~ b</code> where <code>a</code> gives the data values and <code>b</code> a factor giving the corresponding groups.</dd>

 <dt>data</dt>
<dd>an optional data frame containing the variables in the formula <code>formula</code>. By default the variables are taken from <code>environment(formula)</code>.</dd>

</dl>

byf.shapiro: Shapiro-Wilk test for factor levels

Description

Usage

Value

Arguments

Author

See Also

Examples