coots: coots data

In SDAResources: Datasets and Functions for 'Sampling: Design and Analysis, 3rd Edition'

Description

Selected information on egg size, from a larger study by Arnold (1991). Data provided courtesy of Todd Arnold. Not all observations are used for this data set, so results may not agree with those in Arnold (1991).

Usage

data(coots)

Format

This data frame contains the following columns:

clutch:

clutch number from which eggs were subsampled

csize:

number of eggs in clutch (M_i)

length:

length of egg (mm)

breadth:

maximum breadth of egg (mm)

volume:

calculated as 0.000507*length*breadth^2 (mm^3)

tmt:

= 1 if received supplemental feeding

= 0 otherwise

References

Arnold, T. W. (1991). Intraclutch variation in egg size of American coots. The Condor 93, 19–27.

Lohr (2021), Sampling: Design and Analysis, 3rd Edition. Boca Raton, FL: CRC Press.

Lu and Lohr (2021), R Companion for Sampling: Design and Analysis, 3rd Edition, 1st Edition. Boca Raton, FL: CRC Press.

SDAResources documentation built on Oct. 22, 2021, 5:08 p.m.