brambles {boot} | R Documentation

## Spatial Location of Bramble Canes

### Description

The `brambles` data frame has 823 rows and 3 columns.

The location of living bramble canes in a 9m square plot was recorded. We take 9m to be the unit of distance so that the plot can be thought of as a unit square. The bramble canes were also classified by their age.

### Usage

    brambles

### Format

This data frame contains the following columns:

`x`

  The x coordinate of the position of the cane in the plot.

`y`

  The y coordinate of the position of the cane in the plot.

`age`

  The age classification of the canes; `0` indicates a newly emerged cane, `1` indicates a one year old cane and `2` indicates a two year old cane.

### Source

The data were obtained from

Diggle, P.J. (1983) Statistical Analysis of Spatial Point Patterns. Academic Press.

### References

Davison, A.C. and Hinkley, D.V. (1997) Bootstrap Methods and Their Application. Cambridge University Press.

[Package boot version 1.3-4 Index]