sub.sp.matrix: Subset species matrix according to relative frequency
In spaa: SPecies Association Analysis

Description Usage Arguments Details Value Author(s) References See Also Examples

Subset species matrix according to relative frequency.

1	sub.sp.matrix(spmatrix, freq = 0.5, common = NULL)

`spmatrix`	The spmatrix is a standard species matrix with rows for plots and column for species.
`freq`	The value of relative frequency to be specified, species with higher relative frequency will be reserved in the output matrix.
`common`	The number of most common (according to relative frequency) species to be specified.

sub.sp.matrix will select the species whose relative frequency above 0.5 (default), or select certain number of species according to relative frequency.

A subset matrix with certain number of top relative frequency.

Jinlong Zhang jinlongzhang01@gmail.com

None

See Also subset

library(vegan)
data(BCI)
## Select the species whose relative frequency 
## more than 0.5, from BCI data 
sub <- sub.sp.matrix(BCI, freq = 0.5)
## Select the top 30 species according to relative frequency 
sub <- sub.sp.matrix(BCI, common = 30)