counties: Data on a Simple Random Sample of 100 Counties in the U.S.

In robsurvey: Robust Survey Statistics Estimation

Data on a Simple Random Sample of 100 Counties in the U.S.

Description

Data from a simple random sample (without replacement) of 100 of the 3141 counties in the United Stated (U.S. Bureau of the Census, 1994).

Usage

data(counties)

Format

A data.frame with 100 observations on the following variables:

state

state, [character].

county

county, [character].

landarea

land area, 1990 (square miles), [double].

totpop

population total, 1992, [double].

unemp

number of unemployed persons, 1991, [double].

farmpop

farm population, 1990, [double].

numfarm

number of farms, 1987, [double].

farmacre

acreage in farms, 1987, [double].

weights

sampling weight, [double].

fpc

finite population corretion, [double].

Details

The data (and 10 additional variables) are published in Lohr (1999, Appendix C).

Source

Lohr, S. L. (1999). Sampling: Design and Analysis, Pacific Grove (CA): Duxbury Press.

Examples

data(counties)

## Not run: 
# survey design for counties data (pkg survey is required)
library(survey)
dn <- svydesign(ids = ~1, fpc = ~fpc, weights = ~weights, data = counties)

## End(Not run)

robsurvey documentation built on Jan. 6, 2023, 5:09 p.m.