Title: Cheddar 0.1-623 released Tags: release Slug: Cheddar 0.1-623 released. Author: Lawrence Hudson
Cheddar 0.1-623 was released today and is available on CRAN.
This release adds functions to that compute the quantitative web stats defined by
Bersier et al (2002)
- descriptors that are based upon information-theory and that consider the
strength of trophic interactions. The NodeQuantitativeDescriptors
and
QuantitativeDescriptors
functions compute tables of node-level and
community-level quantitative descriptors respectively, as presented in Bersier
et al Tables 1 and 2.
:::S
library(cheddar)
data(ChesapeakeBay)
QuantitativeDescriptors(ChesapeakeBay, 'biomass.flow')
NodeQuantitativeDescriptors(ChesapeakeBay, 'biomass.flow')
This release also introduces the NvMTriTrophicTable
function, which builds
upon existing functions within cheddar, and provides a convenient way to
compute the set of statistics presented in Table 1 of
http://dx.doi.org/10.1073/pnas.0910582106
The RemoveNode
function has been enhanced in this release - it now offers a
range of methods for how species' removals are propagated through the food web.
See the release history for details.
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