golftees: Golf tee data

Description Format Details References

Description

The data are from independent surveys by eight observers of a population of 250 groups (760 individuals) of golf tees. The tees, of two colours, were placed in groups of between 1 and 8 in a survey region of 1680 m^2^, either exposed above the surrounding grass, or at least partially hidden by it. They were surveyed by the 1999 statistics honours class at the Univ of St Andrews.

Format

The format is:

List of 4 $ book.tee.dataframe:'data.frame':

$ object

object ID

$ observer

observer ID

$ detected

detected or not detected

$ distance

perpendicular distance

$ size

group size

$ sex

number of tees in group

$ exposure

tee height above ground

$ book.tee.region :'data.frame': 2 obs. of 2 variables: ..

$ Region.Label

stratum name

$ Area

stratum size

$ book.tee.samples :'data.frame': 11 obs. of 3 variables: ..

$ Sample.Label

transect label

$ Region.Label

stratum name

$ Effort

transect length

$ book.tee.obs :'data.frame': 162 obs. of 3 variables:

$ object

object ID

$ Region.Label

stratum in which it was detected

$ Sample.Label

transect on which it was detected

Details

We treat each group of golf tees as a single animal with size equal to the number of tees in the group; yellow tees are male, green are female; tees exposed above the surrounding grass are classified as exposed, others as unexposed. We are grateful to Miguel Bernal for making these data available; they were collected by him as part of a masters project.

References

Borchers, D. L., S.T. Buckland, and W. Zucchini. 2002. Estimating Animal Abundance: Closed Populations. Statistics for Biology and Health. London: Springer-Verlag. https://www.springer.com/gp/book/9781852335601.

Buckland, S.T., D.R. Anderson, K.P. Burnham, J.L. Laake, D.L. Borchers, and L. Thomas. Advanced Distance Sampling: Estimating Abundance of Biological Populations. OUP Oxford, 2004.


Distance documentation built on Jan. 13, 2021, 10:43 p.m.