| raretaxa {labdsv} | R Documentation |
Identify Rare Taxa in a Data Set
Description
Identifies the distribution of rare taxa in a community data.frame, using a specified rareness threshold.
Usage
raretaxa(comm,min=1,log=FALSE,type='b', panel='all')
Arguments
comm |
a community data.frame with samples as rows and species as columns |
min |
the minimum number of occurrences for a species to be considered rare |
log |
controls whether or not the Y axis on some graphs should be log scaled |
type |
the plot type. ‘b’ = both points and lines |
panel |
a switch to control which graphic is displayed. Can be either an integer from 1 to 3 or the word ‘all’. |
Details
Rare species are an issue in ecological data sets. This function produces three graphs identifying (1) the distribution of rare species/plot, (2) the mean abundance (when present) of rare species, and (3) the total abundance or rare species/plot.
Value
Produces only graphs and returns no output
Author(s)
David W. Roberts droberts@montana.edu
Examples
data(bryceveg)
raretaxa(bryceveg,min=3,log=TRUE)