stratasize: Sample Size Determination for Stratified Sampling

In samplingbook: Survey Sampling Procedures

Description

The function stratasize determinates the total size of stratified samples depending on type of allocation and determinated by specified precision.

Usage

stratasize(e, Nh, Sh, level = 0.95, type = 'prop')

Arguments

e	positive number specifying sampling precision.
Nh	vector of population sizes in each stratum.
Sh	vector of standard deviation in each stratum.
level	coverage probability for confidence intervals. Default is level=0.95.
type	type of allocation. Default is type='prop' for proportional, alternative is type='opt' for optimal.

Value

The function stratasize returns a value, which is a list consisting of the components

call	is a list of call components: e specified precision, Nh population sizes of every stratum, Sh standard diviation of every stratum, method type of allocation, level coverage probability for confidence intervals.
n	determinated total sample size.

Author(s)

Shuai Shao

References

Kauermann, Goeran/Kuechenhoff, Helmut (2011): Stichproben. Methoden und praktische Umsetzung mit R. Springer.

See Also

stratasamp, stratamean

Examples

#random proportional stratified sample
stratasize(e=0.1, Nh=c(100000,300000,600000), Sh=c(1,2,3))

#random optimal stratified sample
stratasize(e=0.1, Nh=c(100000,300000,600000), Sh=c(1,2,3), type="opt")

Example output

Loading required package: pps
Loading required package: sampling
Loading required package: survey
Loading required package: grid
Loading required package: Matrix
Loading required package: survival

Attaching package: 'survival'

The following objects are masked from 'package:sampling':

    cluster, strata


Attaching package: 'survey'

The following object is masked from 'package:graphics':

    dotchart


stratamean object: Stratified sample size determination

type of sample: prop

total sample size determinated: 2568

stratamean object: Stratified sample size determination

type of sample: opt

total sample size determinated: 2395

samplingbook documentation built on April 3, 2021, 1:06 a.m.