# Posts Tagged ‘ trophic networks ’

## A (fast!) null model of bipartite networks

September 12, 2010
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$A (fast!) null model of bipartite networks$

One of the challenges for ecologists working with trophic/interaction networks is to understand their organization. One of the possible approaches is to compare them across a random model, with more or less constraints, in order to estimate the departure from randomness. To this effect, null models have been developed. The basic idea behind a null

## R helps reproducible research

August 5, 2010
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While reading a paper on mutualistic networks in press at Ecology, by Jimena Dorado et al., I found the following sentence in the Materials & methods section: Correlation analyses were done using the cor.test function in the basepackage of R (…)Read the rest of this entry »

## Viewing a bipartite network

July 30, 2010
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A short modification of a function to draw bipartite networks in matrix form, with sorting of the network to reflect its nestedness.