group_index: Group ESG and Index

In salah31416/eeiR: Ecological Evaluation Index in R

Description

Using morphological (external morphology, internal anatomy and texture), physiological (surface area/volume ratio, photosynthetic/non-photosynthetic ratio, photosynthetic performance, growth and light adaptation) and life history (longevity and succession) traits along with distributional data across eutrophication gradients, different benthic macrophyte ESG's relevant to nutrient and light responses in transitional waters were determined (Orfanidis et al., 2014)

ESG I (slow-growing, late-successional species) and ESG II (fast-growing, opportunistic species) are both divided hierarchically into three sub-groups, as follows: ESG IA, ESG IB, ESG IC, ESG IIA, ESG IIB and ESG IIC.

Usage

group_index(data, id_names = c("Taxa"), col_data = "Taxa", variable_name = "variable", by = NULL, ref = NULL, add = NULL, k = NULL, na.rm = FALSE)

Arguments

data	data.table or data.frame
id_names	vector of id variables. Can be integer (corresponding id column numbers) or character (id column names).
col_data	name of the column containing the names of the taxa
variable_name	name for the measured variable names column. The default name is "'variable'"
by	group by
ref	data.tabel or data.frame with reference data for esg
add	append functional group default
k	append functional group default
na.rm	remove NA

salah31416/eeiR documentation built on June 16, 2020, 9:34 p.m.