SamplingStrata (1.1)

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Optimal Stratification of Sampling Frames for Multipurpose Sampling Surveys.

http://cran.r-project.org/web/packages/SamplingStrata

In the field of stratified sampling design, this package offers an approach for the determination of the best stratification of a sampling frame, the one that ensures the minimum sample cost under the condition to satisfy precision constraints in a multivariate and multidomain case. This approach is based on the use of the genetic algorithm: each solution (i.e. a particular partition in strata of the sampling frame) is considered as an individual in a population; the fitness of all individuals is evaluated applying the Bethel-Chromy algorithm to calculate the sampling size satisfying precision constraints on the target estimates. Functions in the package allows to: (a) analyse the obtained results of the optimisation step; (b) assign the new strata labels to the sampling frame; (c) select a sample from the new frame accordingly to the best allocation. Functions for the execution of the genetic algorithm are a modified version of the functions in the 'genalg' package.

Maintainer: Giulio Barcaroli
Author(s): Giulio Barcaroli, Daniela Pagliuca, Egon Willighagen, Diego Zardetto

License: GPL (>= 2)

Uses: memoise

Released over 1 year ago.


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Related packages: Amelia, Hmisc, MatchIt, cat, foreign, ineq, lme4, memisc, mice, mitools, mix, nlme, norm, odfWeave, pan, pps, reweight, sampling, sdcMicro, spsurvey(20 best matches, based on common tags.)


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