index: Indices EEIc - EQR - ESC
In salah31416/eeiR: Ecological Evaluation Index in R

calculates the EEIc, EQR and ESC indices.

1	index(data, id_names = c("FG", "Taxa"), fg_name = "FG", variable_name = "variable", by = NULL, k = NULL, na.rm = FALSE)

`data`	data.table or data.frame.
`id_names`	vector of id variables. Can be integer (corresponding id column numbers) or character (id column names).
`fg_name`	name colunm of functional group.
`variable_name`	name for the measured variable names column. The default name is "'variable'"
`by`	vector group by
`k`	constant for EEI
`na.rm`	remove NA