Craters in Uganda

Locations of craters in a volcanic field in Uganda

data(uganda)

Format

A list corresponding to a Venables and Ripley point object with 120 observations

x	numeric	grid eastings
y	numeric	grid northings
area	list	bounding box with xl, xu, yl, yu
poly	array	polygon boundary with columns x and y

Source

Tinkler, 1971, - Bailey and Gatrell 1995, ch. 3.

References

Bailey, T. C. and Gatrell, A. C. 1995, Interactive spatial data analysis. Longman, Harlow.