mat.2.list: Transform a Binary Predator:prey Food Web Matrix into an Interaction List
Description
Takes a matrix of zeroes and ones, where ones represent consumption of the species in the row by the species in the column, and transforms it into a list of trophic interactions (i.e. a list of the pairs of species where the value in the matrix was equal to zero).
Usage
mat.2.list(filename, output)
Arguments
filename
Name of the file in the current working directory that contains the predator:prey matrix. This file must NOT contain species names. The output is generated on the basis of the column and row numbers.
output
Full name of the file in which the list of interactions should be written. The file will be saved in the current working directory.
Value
A file containing the list of trophic interactions specified in the food web matrix.
References
Perdomo G., Sunnucks P. and Thompson R.M. (submitted). food web: an open-source program for the visualisation and analysis of compilations of complex food webs. Environmental Modelling and Software.