cellKey: Consistent Perturbation of Statistical Frequency- And Magnitude
Tables
Data from statistical agencies and other institutions often
    need to be protected before they can be published. This package 
    can be used to perturb statistical tables in a consistent way. The
    main idea is to add - at the micro data level - a record key for each
    unit. Based on these keys, for any cell in a statistical table a
    cell key is computed as a function on the record keys contributing to
    a specific cell. Values that are added to the cell in order to perturb
    it are derived from a lookup-table that maps values of cell keys to 
    specific perturbation values. The theoretical basis for the methods 
    implemented can be found in Thompson, Broadfoot and Elazar 
    (2013) <https://unece.org/fileadmin/DAM/stats/documents/ece/ces/ge.46/2013/Topic_1_ABS.pdf>
    which was extended and enhanced by Giessing and Tent 
    (2019) <https://unece.org/fileadmin/DAM/stats/documents/ece/ces/ge.46/2019/mtg1/SDC2019_S2_Germany_Giessing_Tent_AD.pdf>.
| Version: | 1.0.3 | 
| Depends: | R (≥ 4.1), sdcHierarchies (≥ 0.19.3) | 
| Imports: | rlang, methods, digest (≥ 0.6.23), sdcTable (≥ 0.32.2), ptable (≥ 1.0.0), cli, utils, yaml, parallel, data.table | 
| Suggests: | testthat, knitr, rmarkdown | 
| Published: | 2025-09-03 | 
| DOI: | 10.32614/CRAN.package.cellKey | 
| Author: | Bernhard Meindl [aut, cre] | 
| Maintainer: | Bernhard Meindl  <bernhard.meindl at statistik.gv.at> | 
| BugReports: | https://github.com/sdcTools/userSupport/issues | 
| License: | GPL-2 | 
| URL: | https://github.com/sdcTools/cellKey | 
| NeedsCompilation: | no | 
| Materials: | README, NEWS | 
| CRAN checks: | cellKey results | 
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