acomp-class

coerce,acomp,data.frame-method

coerce,acomp,structure-method

coerce&lt;-,acomp,data.frame-method

The S4-version of the data container "acomp" for compositional data. More information in 
<code>acomp</code>

classes

Provides functions for the consistent analysis of compositional
data (e.g. portions of substances) and positive numbers (e.g. concentrations)
in the way proposed by J. Aitchison and V. Pawlowsky-Glahn.

K Gerald van den Boogaart

compositions

Compositional Data Analysis

acomp-class function

A virtual Class: No objects may be directly created from it. 
This is provided to ensure that acomp objects behave as data.frame or structure under certain circumstances. Use <code>acomp</code> to create these objects.

Objects from the Class

<dl>
 <dt><code>.Data</code>:</dt>
<dd>Object of class <code>"list"</code> containing the data itself</dd> <dt><code>names</code>:</dt>
<dd>Object of class <code>"character"</code> with column names</dd> <dt><code>row.names</code>:</dt>
<dd>Object of class <code>"data.frameRowLabels"</code> with row names</dd> <dt><code>.S3Class</code>:</dt>
<dd>Object of class <code>"character"</code> with the class string</dd> 
</dl>

Slots

Class <code>"data.frame"</code>, directly.
Class <code>"compositional"</code>, directly.
Class <code>"list"</code>, by class "data.frame", distance 2.
Class <code>"oldClass"</code>, by class "data.frame", distance 2.
Class <code>"vector"</code>, by class "data.frame", distance 3.

Extends

<dl>
 <dt>coerce</dt>
<dd><code>signature(from = "acomp", to = "data.frame")</code>: to generate a data.frame</dd> <dt>coerce</dt>
<dd><code>signature(from = "acomp", to = "structure")</code>: to generate a structure (i.e. a vector, matrix or array)</dd> <dt>coerce&lt;-</dt>
<dd><code>signature(from = "acomp", to = "data.frame")</code>: to overwrite a composition with a data.frame</dd>	 
</dl>

Methods

Author

Class "acomp" — acomp-class

<dl>
 <dt><code>.Data</code>:</dt>
<dd>Object of class <code>"list"</code> containing the data itself</dd>

 <dt><code>names</code>:</dt>
<dd>Object of class <code>"character"</code> with column names</dd>

 <dt><code>row.names</code>:</dt>
<dd>Object of class <code>"data.frameRowLabels"</code> with row names</dd>

 <dt><code>.S3Class</code>:</dt>
<dd>Object of class <code>"character"</code> with the class string</dd>

 
</dl>

<dl>
 <dt>coerce</dt>
<dd><code>signature(from = "acomp", to = "data.frame")</code>: to generate a data.frame</dd>

 <dt>coerce</dt>
<dd><code>signature(from = "acomp", to = "structure")</code>: to generate a structure (i.e. a vector, matrix or array)</dd>

 <dt>coerce&lt;-</dt>
<dd><code>signature(from = "acomp", to = "data.frame")</code>: to overwrite a composition with a data.frame</dd>

	 
</dl>

acomp-class: Class `"acomp"`

Description

Arguments

Objects from the Class

Slots

Extends

Methods

Author

References

See Also

Examples