randomizeSample {picante} | R Documentation |
Various null models for randomizing community data matrices
randomizeSample(samp, null.model = c("frequency", "richness", "both"))
samp |
Community data matrix |
null.model |
Null model
|
Randomized community data matrix
Null model both
currently only works with presence-absence data. Convert your data to presence-absence before using this null model (e.g. decostand(x,method="pa")
)
Steve Kembel <skembel@berkeley.edu>
Gotelli, N.J. 2000. Null model analysis of species co-occurrence patterns. Ecology 81: 2606-2621.
data(phylocom) randomizeSample(phylocom$sample, null.model="richness")