Permutes a vegetation (or other) data.frame to establish a basis for null model tests in vegetation ecology.
the vegetation (or other taxon) data.frame, samples as rows, species as columns
a switch for permuting (if FALSE) or boostrapping (if TRUE)
a switch to control randomizing by species (if TRUE), maintaining species occurrence distributions
a switch to control randomizing by samples (if TRUE), maintaining plot-level species richness
Permutes or bootstraps a vegetation data frame for input to
or other routines. Can randomize by columns (species=TRUE), samples
(plots=TRUE), or fully (neither species nor plots = TRUE).
a data.frame with samples as rows and species as columns of the same dimensions as entered.
Randomizing vegetation often leads to unrealistic data distributions,
but this function attempts to preserve either species occurrence distributions
or plot-level species richness. It is probably worth examining the output
of this function with
abuocc to see its characteristics
before engaging in extensive analysis.
1 2 3 4 5
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.