biotic-package {biotic}

biotic: A package for calculating a range of UK freshwater invertebrate biotic indices.

Description

The biotic package provides a main calculation function, wrapper functions for easy calculation of specific indices and a data transposition function which can be used to prepare data for analysis when needed.

Main function

The main function is calcindex which allows the calculation of any of the indices implemented.

Wrapper functions

A function is provided for each of the individual indices to allow for quick calculations. An example is calcPSI which implements calculation of the PSI index of sedimentation impacts.

Data transposition function

The transposedata function allows for simple conversion between the default format with taxa in rows and samples in columns and the transpose of this.