largest.weight: find out the food chain with largest weights among all food...

In loop: loop decomposition of weighted directed graphs for life cycle analysis, providing flexbile network plotting methods, and analyzing food chain properties in ecology

Description

a food chain wtih largest weights mean that the summation of weights for each link of the chain is the largest. Note: the longest food chain (with largest number of nodes) does not necessarily have the largest weight.

Usage

largest.weight(gemat, sp)

Arguments

gemat	standard square graph matrix
sp	the node that is evaluated.

Value

return all candidate pathways and related weights

Author(s)

Youhua Chen <[e-mail]>

References

Chen Y (2012) loop: an R package for performing decomposition of weighted directed graphs, food web analysis and flexible network plotting. Submitted.

See Also

shortest.chain, longest.chain, smallest.weight, lclw

Examples

#mat=matrix(c(0,5,3,7,0,5,0,8,0,4,3,8,0,1,6,7,0,1,0,2,0,4,6,2,0),5,5)
#search for species 3
#largest.weight(mat,3)

loop documentation built on May 2, 2019, 9:07 a.m.