# Compute species' relative frequency

`freq.calc.Rd`

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