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.

1 | ```
largest.weight(gemat, sp)
``` |

`gemat` |
standard square graph matrix |

`sp` |
the node that is evaluated. |

return all candidate pathways and related weights

Youhua Chen <haydi@126.com>

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

`shortest.chain`

,
`longest.chain`

,
`smallest.weight`

,
`lclw`

1 2 3 | ```
#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)
``` |

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