Friday, July 10, 2015

Function for calculating habitat fragmentation indices/stats for particular coordinates

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Function for calculating habitat fragmentation indices/stats for particular coordinates Here is a function that calculates 'fragstats...
Monday, May 18, 2015

Phylogenetic diversity calculator for community matrix

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Phylogenetic diversity calculator for community matrix Here is a function that calculates phylogenetic diversity (i.e. Faith's) for a ...
Thursday, April 30, 2015

Function for maximising rank correlation between environmental and compositional differences

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As a follow-on from the post on scaling environmental variables before calculating distances, there is  this function  ('bioenv') in...
Friday, April 10, 2015

Scaling environmental variables

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Multivariate analysis in community ecology often involves some comparison of samples (e.g. field plots) based on some measure of species com...
Tuesday, February 10, 2015

Biodiversity mapping functions for R (5): presence/absence of species across a gridded map

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Map grid cell presence/absence I am sequentially posting some self-contained functions for mapping biodiversity metrics in R.  This func...

Biodiversity mapping functions for R (4): Phylogenetic Endemism (test against expectation)

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Phylogenetic endemism – non-parametric tests I am sequentially posting some self-contained functions for mapping biodiversity metrics in R...

Biodiversity mapping functions for R (3): Phylogenetic Endemism (raw)

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Phylogenetic Endemism I am sequentially posting some self-contained functions for mapping biodiversity metrics in R, this one is: phyloge...