spaa (version 0.2.5)

sub.sp.matrix: Subset species based on relative frequency

Description

Subset species based on relative frequency.

Usage

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

Value

A subset matrix of species with high relative frequency.

Arguments

spmatrix

a standard community matrix with rows representing sites and columns representing species.

freq

The relative frequency, species with higher relative frequency will be kept in the output.

common

The number of most common species to keep.

Author

Jinlong Zhang

Details

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

References

None

See Also

See Also subset

Examples

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)