Cheddar 0.1-625 was released today and is available on CRAN.

This release introduces an enhancement to the TrophicChains function. The number of possible trophic chains within a food web rapidly increases with the number of nodes and links. The worst-case scenario is that every consumer eats every other node in the network. In this case, the of the number chains increases factorially with the number of nodes and, even for food webs with relatively few nodes, the number of trophic chains becomes too large to compute within practical time and within available memory. The Large numbers of trophic chains section of the Community vignette explains this in more detail. Starting with this release of cheddar, the TrophicChains function will raise an error if the number of chains reaches a configurable safety limit.

See the release history for details.