shapespop {SDAResources}

shapespop data

Description

Population of black and gray squares and circles.

Usage

data(shapespop)

Format

This data frame contains the following columns:

ID:

identification number for object

shape:

shape of object (square or circle)

color:

color of object (gray or black)

area:

area of object (cm^2)

conv:

= 1 if object can be reached through convenience sample

= 0 otherwise

References

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.