tprTrees-class

[,tprTrees,ANY,ANY,ANY-method

[,tprTrees-method

length,tprTrees-method

show,tprTrees-method

This class represents one or multiple trees by their biometric
characteristics.
using indices i and j to subset

methods

Providing new german-wide 'TapeR' Models and functions for their
evaluation. Included are the most common tree species in Germany (Norway
spruce, Scots pine, European larch, Douglas fir, Silver fir as well as
European beech, Common/Sessile oak and Red oak). Many other species are mapped
to them so that 36 tree species / groups can be processed. Single trees are
defined by species code, one or multiple diameters in arbitrary measuring
height and tree height. The functions then provide information on diameters
along the stem, bark thickness, height of diameters, volume of the total or
parts of the trunk and total and component above-ground biomass. It is also
possible to calculate assortments from the taper curves. Uncertainty
information is provided for diameter, volume and component biomass estimation.

Christian Vonderach

TapeS

Tree Taper Curves and Sorting Based on 'TapeR'

Edgar Kublin

Gerald Kändler

tprTrees-class function

<dl><dt>x</dt>
<dd>object of class 'tprTrees'</dd>
<dt>i</dt>
<dd>index i</dd>
<dt>j</dt>
<dd>index j</dd>
<dt>...</dt>
<dd>not currently used</dd>
<dt>drop</dt>
<dd>drop dimensions, defaults to FALSE</dd>
<dt>object</dt>
<dd>object of class 'tprTrees'</dd></dl>

Arguments

<ul>
<li><code>x[i</code>: subsetting for class 'tprTrees'</li>
<li><code>length(tprTrees)</code>: length function for class 'tprTrees'</li>
<li><code>show(tprTrees)</code>: length function for class 'tprTrees'</li>
</ul>

Methods (by generic)

<dl>
<dt><code>spp</code></dt>
<dd>species code of trees</dd></dl>
<dt><code>Dm</code></dt>
<dd>list of measured diameters</dd>
<dt><code>Hm</code></dt>
<dd>list of heights of measured diameters</dd>
<dt><code>Ht</code></dt>
<dd>total height of trees</dd>
<dt><code>sHt</code></dt>
<dd>standard deviation of total tree height, defaults to 0 for exact
height measurements without error</dd>
<dt><code>monotone</code></dt>
<dd>logical indicator about monotonicity of taper curve</dd>

Slots

An S4 class to represent one or multiple trees. — tprTrees-class

<dl>

<dt>x</dt>
<dd>object of class 'tprTrees'</dd>


<dt>i</dt>
<dd>index i</dd>


<dt>j</dt>
<dd>index j</dd>


<dt>...</dt>
<dd>not currently used</dd>


<dt>drop</dt>
<dd>drop dimensions, defaults to FALSE</dd>


<dt>object</dt>
<dd>object of class 'tprTrees'</dd>

</dl>

<dl>
<dt><code>spp</code></dt>
<dd>species code of trees</dd>


<dt><code>Dm</code></dt>
<dd>list of measured diameters</dd>


<dt><code>Hm</code></dt>
<dd>list of heights of measured diameters</dd>


<dt><code>Ht</code></dt>
<dd>total height of trees</dd>


<dt><code>sHt</code></dt>
<dd>standard deviation of total tree height, defaults to 0 for exact
height measurements without error</dd>


<dt><code>monotone</code></dt>
<dd>logical indicator about monotonicity of taper curve</dd>


</dl>

tprTrees-class: An S4 class to represent one or multiple trees.

Description

Usage

Value

Arguments

Methods (by generic)

Slots

Details

Examples