{"id":23029719,"url":"https://github.com/antononcube/raku-statistics-outlieridentifiers","last_synced_at":"2026-08-05T12:32:38.277Z","repository":{"id":71383884,"uuid":"497323980","full_name":"antononcube/Raku-Statistics-OutlierIdentifiers","owner":"antononcube","description":"Raku package for 1D outlier identifier 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Raku::Statistics::OutlierIdentifiers\n\n## In brief\n\nThis a Raku package for 1D outlier identifier functions. \nIf follows closely the Mathematica package [AAp1] and the R package [AAp3].\n\n------\n\n## Installation \n\nFrom Raku.land:\n\n```shell\nzef install Statistics::OutlierIdentifiers\n```\n\nFrom GitHub:\n\n```shell\nzef install https://github.com/antononcube/Raku-Statistics-OutlierIdentifiers.git\n```\n\n------\n\n## Usage examples\n\nLoad packages:\n\n```perl6\nuse Data::Generators;\nuse Statistics::OutlierIdentifiers;\n```\n\nGenerate a vector with random numbers:\n\n```perl6\nsrand(121);\nmy @vec=random-variate(NormalDistribution.new(:mean(10), :sd(20)), 10);\nsay @vec\n```\n\nFind outlier positions and values:\n\n```perl6\nsay outlier-identifier(@vec);\nsay outlier-identifier(@vec):values;\n```\n\nFind *top* outlier positions and values:\n\n```perl6\nsay outlier-identifier(@vec, identifier =\u003e (\u0026top-outliers o \u0026hampel-identifier-parameters));\nsay outlier-identifier(@vec, identifier =\u003e (\u0026top-outliers o \u0026hampel-identifier-parameters)):values;\n```\n\nFind *bottom* outlier positions and values (using quartiles-based identifier):\n\n```perl6\nsay outlier-identifier(@vec, identifier =\u003e (\u0026bottom-outliers o \u0026quartile-identifier-parameters));\nsay outlier-identifier(@vec, identifier =\u003e (\u0026bottom-outliers o \u0026quartile-identifier-parameters)):values;\n```\n\nThe available outlier parameters functions are:\n\n- `hampel-identifier-parameters`\n- `splus-quartile-identifier-parameters`\n- `quartile-identifier-parameters`\n\n```perl6\n.say for (\u0026hampel-identifier-parameters, \u0026splus-quartile-identifier-parameters, \u0026quartile-identifier-parameters).map({ $_ =\u003e $_.(@vec) });\n```\n\n------\n\n## References \n\n[AA1] Anton Antonov,\n[\"Outlier detection in a list of numbers\"](https://mathematicaforprediction.wordpress.com/2013/10/16/outlier-detection-in-a-list-of-numbers/),\n(2013),\n[MathematicaForPrediction at WordPress](https://mathematicaforprediction.wordpress.com).\n\n\n[AAp1] Anton Antonov,\n[\"Implementation of one dimensional outlier identifying algorithms in Mathematica\"](https://github.com/antononcube/MathematicaForPrediction/blob/master/OutlierIdentifiers.m),\n(2013),\n[MathematicaForPrediction at GitHub](https://github.com/antononcube/MathematicaForPrediction).\n\n[AAp2] Anton Antonov,\n[OutlierIdentifiers R-package](https://github.com/antononcube/R-packages/tree/master/OutlierIdentifiers),\n(2019),\n[R-packages at GitHub/antononcube](https://github.com/antononcube/R-packages).\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fantononcube%2Fraku-statistics-outlieridentifiers","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fantononcube%2Fraku-statistics-outlieridentifiers","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fantononcube%2Fraku-statistics-outlieridentifiers/lists"}