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Tools for the optimization of stratified sampling design. It determines a stratification of a sampling frame that minimizes sample cost while satisfying precision constraints in a multivariate and multidomain context. The approach relies on a genetic algorithm; each candidate partition of the frame is an individual whose fitness is evaluated via the Bethel-Chromy allocation to meet target precisions. Functions support analysis of optimization results, labeling of the frame with new strata, and drawing a sample according to the optimal allocation. Algorithmic components adapt code from the 'genalg' package. See M. Ballin and G. Barcaroli (2020) "R package SamplingStrata: new developments and extension to Spatial Sampling" <doi:10.48550/arXiv.2004.09366>.
| Version: | 1.5-5 |
| Depends: | R (≥ 3.5.0) |
| Imports: | memoise, doParallel, pbapply, SamplingBigData, glue, methods |
| Suggests: | knitr, rmarkdown, formattable |
| Published: | 2025-10-08 |
| DOI: | 10.32614/CRAN.package.SamplingStrata |
| Author: | Giulio Barcaroli [aut, cre], Marco Ballin [aut], Hanjo Odendaal [aut], Daniela Pagliuca [aut], Egon Willighagen [aut], Diego Zardetto [aut] |
| Maintainer: | Giulio Barcaroli <gbarcaroli at gmail.com> |
| BugReports: | https://github.com/barcaroli/SamplingStrata/issues |
| License: | GPL-2 | GPL-3 [expanded from: GPL (≥ 2)] |
| URL: | https://barcaroli.github.io/SamplingStrata/, https://github.com/barcaroli/SamplingStrata/ |
| NeedsCompilation: | no |
| Citation: | SamplingStrata citation info |
| Materials: | NEWS |
| In views: | OfficialStatistics |
| CRAN checks: | SamplingStrata results |
| Package source: | SamplingStrata_1.5-5.tar.gz |
| Windows binaries: | r-devel: SamplingStrata_1.5-5.zip, r-release: SamplingStrata_1.5-4.zip, r-oldrel: SamplingStrata_1.5-4.zip |
| macOS binaries: | r-release (arm64): SamplingStrata_1.5-5.tgz, r-oldrel (arm64): SamplingStrata_1.5-5.tgz, r-release (x86_64): SamplingStrata_1.5-5.tgz, r-oldrel (x86_64): SamplingStrata_1.5-5.tgz |
| Old sources: | SamplingStrata archive |
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