R-Forge Project: Functional diversity - News

FD 1.0-9 now on CRAN and R-Forge

elaliberte@users.r-forge.r-project.org (Etienne Laliberté) — Wed, 28 Apr 2010 00:51:21 GMT

This new version corrects a bug reported by Sarah Berke that prevented sing.sp from being calculated correctly in dbFD().

FD 1.0-7 and maxent.test()

elaliberte@users.r-forge.r-project.org (Etienne Laliberté) — Fri, 12 Feb 2010 13:59:49 GMT

The new version 1.0-7 is now available on R-Forge. Additions are maxent.test() which implements the permutation tests of Shipley (2010; Ecology) for maximum entropy (maxent) models. This makes it easy to now test a model generated by maxent().

Also, maxent() now accepts a matrix/data.frame to run the model on several sites/data sets in one go. The arguments names were also changed to be consistent with Shipley (2010). I hope this does not affect too much previous code written to work with maxent().

maxent() now 10x faster

elaliberte@users.r-forge.r-project.org (Etienne Laliberté) — Mon, 21 Dec 2009 21:57:35 GMT

I've tweaked Bill Shipley's FORTRAN routine to speed up maxent() substantially. It's about 10 times faster than the previous version, which used only R code for the while loop, which was the real bottleneck in terms of speed. Comments welcome!

maxent() added

elaliberte@users.r-forge.r-project.org (Etienne Laliberté) — Tue, 03 Nov 2009 21:10:10 GMT

The maximum entropy (maxent) model of trait-based community assembly proposed by Bill Shipley is now on FD. Thanks to Dr Shipley for contributing his R code.

Source code now on R-Forge

elaliberte@users.r-forge.r-project.org (Etienne Laliberté) — Wed, 28 Oct 2009 14:41:44 GMT

I've added the FD package version 1.0-1 today on R-Forge.

gowdis() and dbFD() now much faster

elaliberte@users.r-forge.r-project.org (Etienne Laliberté) — Mon, 26 Oct 2009 08:27:27 GMT

Version 1.0-1 brings compiled C code to gowdis(), making it MUCH faster. Because dbFD() relies on gowdis(), it should be faster as well.