Compute species' relative frequency

Computing species' relative frequency as defined by the numbers of plots having a species divided by the total number of plots.

freq.calc(matr)

Arguments

matr	A community matrix

Details

The input should be a standard community matrix with rows representing sites and columns representing species.

Value

A vector containing relative frequency for each species

References

None

Author

Jinlong Zhang jinlongzhang01@gmail.com

Examples

data(testdata)
spmatrix <- data2mat(testdata)
freq.calc(spmatrix)
#>       sp1       sp2       sp3       sp4       sp5       sp6       sp7 
#> 0.6666667 0.6666667 0.6666667 0.6666667 0.3333333 0.3333333 0.3333333