dg.fx

Function to compute the diameter of the tree of average basal
area ($D_{\overline{g}}$),
which depends on stand density ($N$) and stand basal area ($G$).
The aforementioned stand diameter is computed as
$$D_{\overline{g}} = \sqrt{ \frac{G}{N} \frac{k}{pi}}$$
where the constant $k$ depends on whether the variables are in the
units of measurement of the metric or imperial system.

A system of functions and datasets to carry out quantitative analyses in the biological
sciences. The package facilitates data management, exploratory analyses, and model assessment.
Although it currently focuses on forest ecology, silviculture and decision-making, most of
the package functions are applicable across several disciplines, including economics,
environmental science, and healthcare.

Christian Salas-Eljatib

biometrics

A Package for Biometrics and Modelling

Nicolas Campos

Marcos Marivil

dg.fx function

<dl><dt>n</dt>
<dd>is stand tree density. By default the unit of measurement
is trees/ha, but if the option 'metrics' is set to <code>FALSE</code>, the unit is
trees/acre.</dd>
<dt>g</dt>
<dd>is stand basal area. By default the unit of measurement
must be entered in m$^{2}$/ha, but if the option 'metrics'
is set to <code>FALSE</code>, the unit must be ft$^{2}$/ha.</dd>
<dt>metrics</dt>
<dd>is a logic value, the default is set to <code>TRUE</code>,
thus both variables must be entered in the metric system, i.e.,
$N$ in 'trees/ha', and $G$ in m$^{2}$/ha.
If metrics is <code>FALSE</code>, $N$ must be in
trees/acre, and $G$ in ft$^{2}$/acre.</dd></dl>

Arguments

Author

Function to computes the diameter of the tree of average basal area. — dg.fx

<dl>

<dt>n</dt>
<dd>is stand tree density. By default the unit of measurement
is trees/ha, but if the option 'metrics' is set to <code>FALSE</code>, the unit is
trees/acre.</dd>


<dt>g</dt>
<dd>is stand basal area. By default the unit of measurement
must be entered in m$^{2}$/ha, but if the option 'metrics'
is set to <code>FALSE</code>, the unit must be ft$^{2}$/ha.</dd>


<dt>metrics</dt>
<dd>is a logic value, the default is set to <code>TRUE</code>,
thus both variables must be entered in the metric system, i.e.,
$N$ in 'trees/ha', and $G$ in m$^{2}$/ha.
If metrics is <code>FALSE</code>, $N$ must be in
trees/acre, and $G$ in ft$^{2}$/acre.</dd>

</dl>

dg.fx: Function to computes the diameter of the tree of average basal area.

Description

Usage

Value

Arguments

Author

Examples