decrease

This coefficient expresses the ratio between the diameter
(or circumference) at mid-height of the bole and the diameter
(or circumference) measured at breast height.

Computation of dendrometric and structural
parameters from forest inventory data. The objective is to provide an
user-friendly R package for researchers, ecologists, foresters,
statisticians, loggers and others persons who deal with forest inventory
data. Useful conversion of angle value from degree to radian, conversion from
angle to slope (in percentage) and their reciprocals as well as principal
angle determination are also included. Position and dispersion parameters
usually found in forest studies are implemented. The package contains
Fibonacci series, its extensions and the Golden Number computation.
Useful references are Arcadius Y. J. Akossou, Soufianou Arzouma,
Eloi Y. Attakpa, Noël H. Fonton and Kouami Kokou (2013) <doi:10.3390/d5010099>
and W. Bonou, R. Glele Kakaï, A.E. Assogbadjo, H.N. Fonton, B. Sinsin (2009)
<doi:10.1016/j.foreco.2009.05.032> .

Narcisse Yehouenou

dendrometry

Forest Estimations and Dendrometric Computations

Information and Communication Technology for you ONG (ICT4U-ONG) 

decrease function

<dl><dt>middle</dt>
<dd>numeric, the diameter or circumference at middle height.</dd>
<dt>breast</dt>
<dd>numeric, the diameter or circumference at breast height.</dd></dl>

Arguments

The decrease coefficient — decrease

<dl>

<dt>middle</dt>
<dd>numeric, the diameter or circumference at middle height.</dd>


<dt>breast</dt>
<dd>numeric, the diameter or circumference at breast height.</dd>

</dl>

decrease: The decrease coefficient

Description

Usage

Value

Arguments

Details

Examples