| comp_metrics {metrix} | R Documentation |
Composition metrics
Description
Calculates the relative abundance of particular taxa in the assemblage in percentage terms.
Usage
comp_metrics(dataset, store = FALSE, dec_c = ".", verbose = FALSE)
Arguments
dataset |
A data.frame obtained from |
store |
A logical value indicating if the user want to store the results in a file. |
dec_c |
A character used for decimal separator on results file. |
verbose |
A logical value indicating if progress messages should be given. |
Details
Provides information on the makeup of the assemblage and the relative contribution of the populations to the total fauna (Barbour et al., 1996).
Value
This function returns a data.frame with all the calculated composition measures:
per_ephe |
% Ephemeroptera. |
per_molus |
% Mollusca. |
per_gastr |
%Gastropoda. |
per_biv |
%Bivalvia. |
per_crus |
%Crustacea. |
per_oli |
% Oligochaeta. |
per_amph |
% Amphipoda. |
per_ostr |
% Ostracoda. |
per_ephetricho |
% Ephemeroptera + Trichoptera. |
per_naid |
% Naididae. |
per_chir_dip |
% Diptera Chironomidae. |
per_non_chir_dip |
%Diptera no Chironomidae. |
per_polym |
%Polymitarcidae. |
per_hyal |
%Hyalella. |
per_coch |
%Cochliopidae. |
per_tricho |
%Trichoptera. |
per_subchiro |
%Chironominae. |
per_suborth |
%Orthocladiinae. |
per_subtany |
%Tanypodinae. |
Author(s)
Juan Manuel Cabrera and Julieta Capeletti.
References
Barbour MT, Gerritsen J, Griffith GE, Frydenborg R, McCarron E, White JS & Bastian ML (1996). A Framework for Biological Criteria for Florida Streams Using Benthic Macroinvertebrates. doi: 10.2307/1467948
See Also
Examples
#Load example data
example_data
#Run comp_metrics with that example_data
compmetrics<-comp_metrics(example_data)
#Check results
compmetrics