GA4Stratification: A genetic algorithm approach to determine stratum boundaries...

In GA4Stratification: A genetic algorithm approach to determine stratum boundaries and sample sizes of each stratum in stratified sampling

Description

This is a package for Genetic Algorithm approach for the determination of the stratum boundaries and sample sizes in each stratum in stratified sampling.

Usage

GA4Stratification(dataName, numberOfStrata, sampleSize, iteration, GAgenerationSize, mutationRate, sampleAllocation)

Arguments

dataName	A string: The name of any type of numeric data containing the values of a univariate stratification variable.
numberOfStrata	An integer: The number of strata.
sampleSize	An integer: The total sample size.
iteration	An integer: The number of iterations in the Genetic Algorithm process.
GAgenerationSize	An integer: The number of generations in the Genetic Algorithm process.
mutationRate	A numeric: The mutation rate in the Genetic Algorithm process. Mutation rate must be in between 0 and 1, inclusive. Small levels of mutation rate is preferable in Genetic Algorithm approach.
sampleAllocation	A string: sampleAllocation defines the type of the sample allocation method, which could be either "Equal", "Proportional", "Neyman" or "GA".

Note

This study is part of a project supported by the Scientific and Technological Research Council of Turkey (TUBITAK).

Author(s)

Sebnem Er, Timur Keskinturk, Charlie Daly

Maintainer: Sebnem Er <[e-mail]>

References

http://ideas.repec.org/a/eee/csdana/v52y2007i1p53-67.html

http://www.sciencedirect.com/science/article/B6V8V-4NHM520-1/2/a21e0295aa1616ff56da1ddf2c0ba1ac

Examples

data(iso2004)
GA4Stratification(iso2004,2,80,10,35,0.15,"Equal")
## The function is currently defined as
function(dataName,numberOfStrata,sampleSize,iteration,GAgenerationSize,mutationRate,sampleAllocation)
{
   if(sampleAllocation == "Equal")
   {
	GA4StratificationP1(dataName,numberOfStrata,sampleSize,iteration,GAgenerationSize,mutationRate)
	
   } else if(sampleAllocation=="Proportional") {
	
	GA4StratificationP2(dataName,numberOfStrata,sampleSize,iteration,GAgenerationSize,mutationRate)

   } else if(sampleAllocation == "Neyman") {
	
	GA4StratificationP3(dataName,numberOfStrata,sampleSize,iteration,GAgenerationSize,mutationRate)
   
   } else if (sampleAllocation == "GA") {

	GA4StratificationP4(dataName,numberOfStrata,sampleSize,iteration,GAgenerationSize,mutationRate)

   }

  }

GA4Stratification documentation built on May 30, 2017, 1:22 a.m.