{ "data_id": "41078", "name": "iris", "exact_name": "iris", "version": 4, "version_label": "1", "description": "**Author**: R.A. Fisher \n**Source**: [UCI](https:\/\/archive.ics.uci.edu\/ml\/datasets\/Iris) - 1936 - Donated by Michael Marshall \n**Please cite**: \n\n**Iris Plants Database** \nThis is perhaps the best known database to be found in the pattern recognition literature. Fisher's paper is a classic in the field and is referenced frequently to this day. (See Duda & Hart, for example.) The data set contains 3 classes of 50 instances each, where each class refers to a type of iris plant. One class is linearly separable from the other 2; the latter are NOT linearly separable from each other.\n\nPredicted attribute: class of iris plant. \nThis is an exceedingly simple domain. \n \n### Attribute Information:\n 1. sepal length in cm\n 2. sepal width in cm\n 3. petal length in cm\n 4. petal width in cm\n 5. class: \n -- Iris Setosa\n -- Iris Versicolour\n -- Iris Virginica", "format": "ARFF", "uploader": "Arlind Kadra", "uploader_id": 2902, "visibility": "public", "creator": "\"R.A. Fisher\"", "contributor": null, "date": "2018-04-13 17:54:12", "update_comment": null, "last_update": "2018-04-13 17:54:12", "licence": "Public", "status": "in_preparation", "error_message": null, "url": "https:\/\/www.openml.org\/data\/download\/19038793\/dataset.arff", "default_target_attribute": "class", "row_id_attribute": null, "ignore_attribute": null, "runs": 0, "suggest": { "input": [ "iris", "This is perhaps the best known database to be found in the pattern recognition literature. Fisher's paper is a classic in the field and is referenced frequently to this day. (See Duda & Hart, for example.) The data set contains 3 classes of 50 instances each, where each class refers to a type of iris plant. One class is linearly separable from the other 2; the latter are NOT linearly separable from each other. Predicted attribute: class of iris plant. This is an exceedingly simple domain. ### At " ], "weight": 5 }, "qualities": { "NumberOfInstances": 150, "NumberOfFeatures": 5, "NumberOfClasses": 3, "NumberOfMissingValues": 0, "NumberOfInstancesWithMissingValues": 0, "NumberOfNumericFeatures": 4, "NumberOfSymbolicFeatures": 1, "Dimensionality": 0.03333333333333333, "MeanNominalAttDistinctValues": 3, "Quartile2KurtosisOfNumericAtts": -0.9459091062274964, "EquivalentNumberOfAtts": null, "MeanSkewnessOfNumericAtts": 0.067375701047788, "Quartile2MeansOfNumericAtts": 3.406333333333333, "MajorityClassPercentage": 33.33333333333333, "MeanStdDevOfNumericAtts": 0.9473104002482851, "Quartile2MutualInformation": null, "MajorityClassSize": 50, "MinAttributeEntropy": null, "Quartile2SkewnessOfNumericAtts": 0.10495719724642329, "MaxAttributeEntropy": null, "MinKurtosisOfNumericAtts": -1.401920800645399, "PercentageOfBinaryFeatures": 0, "Quartile2StdDevOfNumericAtts": 0.795613434839352, "MaxKurtosisOfNumericAtts": 0.2907810623654319, "MinMeansOfNumericAtts": 1.1986666666666665, "PercentageOfInstancesWithMissingValues": 0, "Quartile3AttributeEntropy": null, "MaxMeansOfNumericAtts": 5.843333333333334, "MinMutualInformation": null, "PercentageOfMissingValues": 0, "Quartile3KurtosisOfNumericAtts": 0.08006978644516216, "MaxMutualInformation": null, "MinNominalAttDistinctValues": 3, "PercentageOfNumericFeatures": 80, "Quartile3MeansOfNumericAtts": 5.322166666666667, "MaxNominalAttDistinctValues": 3, "MinSkewnessOfNumericAtts": -0.2744642524737837, "PercentageOfSymbolicFeatures": 20, "Quartile3MutualInformation": null, "MaxSkewnessOfNumericAtts": 0.33405266217208907, "MinStdDevOfNumericAtts": 0.43359431136217386, "Quartile1AttributeEntropy": null, "Quartile3SkewnessOfNumericAtts": 0.32926723578831013, "MaxStdDevOfNumericAtts": 1.7644204199522626, "MinorityClassPercentage": 33.33333333333333, "Quartile1KurtosisOfNumericAtts": -1.3863791432688857, "Quartile3StdDevOfNumericAtts": 1.5303318469586626, "MeanAttributeEntropy": null, "MinorityClassSize": 50, "Quartile1MeansOfNumericAtts": 1.6624999999999999, "StdvNominalAttDistinctValues": 0, "MeanKurtosisOfNumericAtts": -0.7507394876837399, "NumberOfBinaryFeatures": 0, "Quartile1MutualInformation": null, "MeanMeansOfNumericAtts": 3.4636666666666667, "Quartile1SkewnessOfNumericAtts": -0.2320973298913695, "AutoCorrelation": 0.9865771812080537, "MeanMutualInformation": null, "Quartile1StdDevOfNumericAtts": 0.5159859189468406, "ClassEntropy": 1.584962500721156, "MeanNoiseToSignalRatio": null, "Quartile2AttributeEntropy": null }, "tags": [ { "tag": "study_1", "uploader": "2902" }, { "tag": "study_25", "uploader": "2902" }, { "tag": "study_4", "uploader": "2902" }, { "tag": "study_41", "uploader": "2902" }, { "tag": "study_50", "uploader": "2902" }, { "tag": "study_52", "uploader": "2902" }, { "tag": "study_7", "uploader": "2902" }, { "tag": "study_86", "uploader": "2902" }, { "tag": "study_88", "uploader": "2902" }, { "tag": "study_89", "uploader": "2902" }, { "tag": "uci", "uploader": "2902" } ], "features": [ { "name": "class", "index": "4", "type": "nominal", "distinct": "3", "missing": "0", "target": "1", "distr": [ [ "Iris-setosa", "Iris-versicolor", "Iris-virginica" ], [ [ "50", "0", "0" ], [ "0", "50", "0" ], [ "0", "0", "50" ] ] ] }, { "name": "sepallength", "index": "0", "type": "numeric", "distinct": "35", "missing": "0", "min": "4", "max": "8", "mean": "6", "stdev": "1" }, { "name": "sepalwidth", "index": "1", "type": "numeric", "distinct": "23", "missing": "0", "min": "2", "max": "4", "mean": "3", "stdev": "0" }, { "name": "petallength", "index": "2", "type": "numeric", "distinct": "43", "missing": "0", "min": "1", "max": "7", "mean": "4", "stdev": "2" }, { "name": "petalwidth", "index": "3", "type": "numeric", "distinct": "22", "missing": "0", "min": "0", "max": "3", "mean": "1", "stdev": "1" } ], "nr_of_issues": 0, "nr_of_downvotes": 0, "nr_of_likes": 0, "nr_of_downloads": 2, "total_downloads": 5, "reach": 2, "reuse": 17, "impact_of_reuse": 0, "reach_of_reuse": 1, "impact": 17 }