trait.asm | R Documentation |
trait.asm
calculates phylogenetic biodiversity metrics
trait.asm(
a,
m = 1000,
meanSR = NULL,
interval = c(0.001, 10),
exponential = TRUE,
Pscale = 1
)
a |
species attributes (e.g., traits like body size) |
m |
number of communities to be simulated |
meanSR |
target mean species richness across simulated communities |
interval |
adjust to obtain |
exponential |
use the exponential distribution when simulating communities |
Pscale |
adjust this value when not using the exponential distribution in order to scale the species richnesses in the simulated communities |
Simulates a set of communties based on the supplied attribute (trait) where larger values make it more likely for species to be in the communities.
Y
presence/absence matrix
P
probabilities
a
the supplied trait
exponential
if the exponential distribution was used
meanSR
supplied meanSR
value
std
estimated sd
M.R. Helmus
Helmus M., Mercado-Silva N. & Vander Zanden M.J. (2013). Subsidies to predators, apparent competition and the phylogenetic structure of prey communities. Oecologia, 173, 997-1007.
## Not run:
data(laja)
trait.asm(laja$fish.pref)
## End(Not run)
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