# A sample dataset s

`testdata.Rd`

A sample dataset

    data(testdata)

## Format

A dataframe with 11 observations on the following 3 variables.

`plotname`

  a factor with levels `plot1`, `plot2`, `plot3`.

`species`

  a factor with levels `sp1` to `sp7`.

`abundance`

  a numeric vector indicating number of individuals appeared in each plot.

## Examples

    data(testdata)
    testdata
    #>    plotname species abundance
    #> 1     plot1     sp1         3
    #> 2     plot1     sp2         6
    #> 3     plot1     sp3         1
    #> 4     plot1     sp4         2
    #> 5     plot1     sp5         1
    #> 6     plot2     sp1         8
    #> 7     plot2     sp3        30
    #> 8     plot3     sp4         2
    #> 9     plot3     sp2         1
    #> 10    plot3     sp6         1
    #> 11    plot3     sp7         3