brambles {boot}

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.