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


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Documentation for package ‘loop’ version 1.1

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loop-package an R package for analyzing and plotting directed networks
convertion this function convert graph matrix form into graph edge form
decomp decompose the weighted graph into directional single connected graphs and a non-connected graph
find.ranks make food trophic ranks for all the species in the matrix for fplot.foodweb function
fplot Another way to plot network structure based on similar vertex will be grouped together, while dissimilar nodes/vertex will depart from each others.
fplot.foodweb a special group graph plot function for food web-style hierarchical structure
gplot make a plot for directional graph from edge matrix graph form
gplot1 plot directed graphs directly from square graph matrix
groupplot A group way to plot network structure based on similar vertex will be grouped together, while dissimilar nodes/vertex will depart from each others.
groupplot.foodweb a special group graph plot function for food web-style hierarchical structure
largest.weight find out the food chain with largest weights among all food chains that are linked to a given species
lclw find the largest weight food chain among the candidate longest food chains for a given node (species)
longest.chain find out the food chain with longest length among all food chains that are linked to a given species
loop an R package for analyzing and plotting directed networks
loop.forward forward method to decompose the weighted graph into single connected graphs
loop.random a random method to decompose the weighted graph into single connected graphs
mst.primm Primm's algorithm to search minimum spanning tree
nmds.ordination perform non-dimensional scaling of the nodes by employing the function 'isoMDS' from package 'MASS'
node.similarity calculate pair similarity of nodes based on the nodes' similarity which have links with the focused pair of nodes
pathways enumerate all food chains that are linked to a given species/node
rank.nodes rank nodes based on the inward links/outward links/both links
shortest.chain find out the food chain with shortest length among all food chains that are linked to a given species
smallest.weight find out the food chain with shortest weight among all food chains that are linked to a given species
uniquepaths enumerate all unique food chains that are linked to a given species/node