loop (version 1.1)

largest.weight: find out the food chain with largest weights among all food chains that are linked to a given species

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

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)