Logging

Data frame of 24 rows and 8 columns containing tree measures.

datasets

Computation of dendrometric and structural parameters from forest inventory data. The objective is to provide a user-friendly R package for researchers, ecologists, foresters, statisticians, loggers and other persons who deal with forest inventory data. The package includes advanced distribution fitting capabilities with multiple estimation methods (Maximum Likelihood, Maximum Product Spacing with ties correction methods following Cheng & Amin (1983), and Method of Moments) for probability distributions commonly used in forestry. Visualization tools with confidence bands using delta method and parametric bootstrap are provided for three-parameter Weibull distribution fitting to diameter 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>, W. Bonou, R. Glele Kakaï, A.E. Assogbadjo, H.N. Fonton, B. Sinsin (2009) <doi:10.1016/j.foreco.2009.05.032>, R. C. H. Cheng and N. A. K. Amin (1983) <doi:10.1111/j.2517-6161.1983.tb01268.x>, and R. C. H. Cheng and M. A. Stephens (1989) <doi:10.1093/biomet/76.2.385>.

Narcisse Yehouenou

dendrometry

Forest Estimations and Dendrometric Computations

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

Logging function

Data frame with twenty five observations and eight variables:<dl>
 <dt>tree</dt>
<dd>Tree name (scientific gender).</dd> <dt>hauteur</dt>
<dd>Stem length in meter (m).</dd> <dt>diametreMedian</dt>
<dd>Tree median diameter in centimeter (cm).</dd> <dt>perimetreMedian</dt>
<dd>Tree median circumference in centimeter (cm).</dd>
 <dt>diametreSection</dt>
<dd>Tree diameter at the end in centimeter (cm).</dd> <dt>perimetreSection</dt>
<dd>Tree circumference at the end in centimeter (cm).</dd>
 <dt>diametreBase</dt>
<dd>Tree diameter at the base in centimeter (cm).</dd> <dt>perimetreBase</dt>
<dd>Tree circumference at the base in centimeter (cm).</dd>
</dl>

Format

Narcisse Yehouenou <a href="/link/narcisstar211%40gmail.com?package=dendrometry&version=0.0.4" data-mini-rdoc="dendrometry::narcisstar211@gmail.com">narcisstar211@gmail.com</a>

Author

Tree metrics for logging — Logging

Data frame with twenty five observations and eight variables:<dl>
 <dt>tree</dt>
<dd>Tree name (scientific gender).</dd>

 <dt>hauteur</dt>
<dd>Stem length in meter (m).</dd>

 <dt>diametreMedian</dt>
<dd>Tree median diameter in centimeter (cm).</dd>

 <dt>perimetreMedian</dt>
<dd>Tree median circumference in centimeter (cm).</dd>


 <dt>diametreSection</dt>
<dd>Tree diameter at the end in centimeter (cm).</dd>

 <dt>perimetreSection</dt>
<dd>Tree circumference at the end in centimeter (cm).</dd>


 <dt>diametreBase</dt>
<dd>Tree diameter at the base in centimeter (cm).</dd>

 <dt>perimetreBase</dt>
<dd>Tree circumference at the base in centimeter (cm).</dd>


</dl>

Narcisse Yehouenou <a href='mailto:narcisstar211@gmail.com'>narcisstar211@gmail.com</a>

Logging: Tree metrics for logging

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