DEVELOPMENT...      {
    "data_id": "820",
    "name": "chatfield_4",
    "exact_name": "chatfield_4",
    "version": 2,
    "version_label": null,
    "description": "**Author**:   \n**Source**: Unknown - Date unknown  \n**Please cite**:   \n\nBinarized version of the original data set (see version 1). It converts the numeric target feature to a two-class nominal target feature by computing the mean and classifying all instances with a lower target value as positive ('P') and all others as negative ('N').",
    "format": "ARFF",
    "uploader": "Felicia West",
    "uploader_id": 2,
    "visibility": "public",
    "creator": null,
    "contributor": null,
    "date": "2014-10-04 14:34:22",
    "update_comment": null,
    "last_update": "2014-10-04 14:34:22",
    "licence": "Public",
    "status": "active",
    "error_message": null,
    "url": "https:\/\/www.openml.org\/data\/download\/53354\/chatfield_4.arff",
    "default_target_attribute": "binaryClass",
    "row_id_attribute": null,
    "ignore_attribute": null,
    "runs": 810,
    "suggest": {
        "input": [
            "chatfield_4",
            "Binarized version of the original data set (see version 1). It converts the numeric target feature to a two-class nominal target feature by computing the mean and classifying all instances with a lower target value as positive ('P') and all others as negative ('N'). "
        ],
        "weight": 5
    },
    "qualities": {
        "NumberOfInstances": 235,
        "NumberOfFeatures": 13,
        "NumberOfClasses": 2,
        "NumberOfMissingValues": 0,
        "NumberOfInstancesWithMissingValues": 0,
        "NumberOfNumericFeatures": 12,
        "NumberOfSymbolicFeatures": 1,
        "AutoCorrelation": 0.7735042735042735,
        "CfsSubsetEval_DecisionStumpAUC": 0.9015220354384371,
        "CfsSubsetEval_DecisionStumpErrRate": 0.09787234042553192,
        "CfsSubsetEval_DecisionStumpKappa": 0.7972389991371872,
        "CfsSubsetEval_NaiveBayesAUC": 0.9015220354384371,
        "CfsSubsetEval_NaiveBayesErrRate": 0.09787234042553192,
        "CfsSubsetEval_NaiveBayesKappa": 0.7972389991371872,
        "CfsSubsetEval_kNN1NAUC": 0.9015220354384371,
        "CfsSubsetEval_kNN1NErrRate": 0.09787234042553192,
        "CfsSubsetEval_kNN1NKappa": 0.7972389991371872,
        "ClassEntropy": 0.9684069022981412,
        "DecisionStumpAUC": 0.8953505982129335,
        "DecisionStumpErrRate": 0.10638297872340426,
        "DecisionStumpKappa": 0.7820117991911245,
        "Dimensionality": 0.05531914893617021,
        "EquivalentNumberOfAtts": null,
        "J48.00001.AUC": 0.8656292594275331,
        "J48.00001.ErrRate": 0.1148936170212766,
        "J48.00001.Kappa": 0.7628480657820967,
        "J48.0001.AUC": 0.8656292594275331,
        "J48.0001.ErrRate": 0.1148936170212766,
        "J48.0001.Kappa": 0.7628480657820967,
        "J48.001.AUC": 0.8656292594275331,
        "J48.001.ErrRate": 0.1148936170212766,
        "J48.001.Kappa": 0.7628480657820967,
        "MajorityClassPercentage": 60.42553191489362,
        "MajorityClassSize": 142,
        "MaxAttributeEntropy": null,
        "MaxKurtosisOfNumericAtts": 2.033520473054053,
        "MaxMeansOfNumericAtts": 1866,
        "MaxMutualInformation": null,
        "MaxNominalAttDistinctValues": 2,
        "MaxSkewnessOfNumericAtts": 1.3073869469687087,
        "MaxStdDevOfNumericAtts": 67.98284097231203,
        "MeanAttributeEntropy": null,
        "MeanKurtosisOfNumericAtts": 0.7219777292935543,
        "MeanMeansOfNumericAtts": 202.473085106383,
        "MeanMutualInformation": null,
        "MeanNoiseToSignalRatio": null,
        "MeanNominalAttDistinctValues": 2,
        "MeanSkewnessOfNumericAtts": 0.9872729349034098,
        "MeanStdDevOfNumericAtts": 45.410321076753256,
        "MinAttributeEntropy": null,
        "MinKurtosisOfNumericAtts": -1.200000000000001,
        "MinMeansOfNumericAtts": 49.11191489361702,
        "MinMutualInformation": null,
        "MinNominalAttDistinctValues": 2,
        "MinSkewnessOfNumericAtts": 0,
        "MinStdDevOfNumericAtts": 40.68973220561795,
        "MinorityClassPercentage": 39.57446808510638,
        "MinorityClassSize": 93,
        "NaiveBayesAUC": 0.9406411012402487,
        "NaiveBayesErrRate": 0.13191489361702127,
        "NaiveBayesKappa": 0.7236657436558814,
        "NumberOfBinaryFeatures": 1,
        "PercentageOfBinaryFeatures": 7.6923076923076925,
        "PercentageOfInstancesWithMissingValues": 0,
        "PercentageOfMissingValues": 0,
        "PercentageOfNumericFeatures": 92.3076923076923,
        "PercentageOfSymbolicFeatures": 7.6923076923076925,
        "Quartile1AttributeEntropy": null,
        "Quartile1KurtosisOfNumericAtts": 0.2995127946922531,
        "Quartile1MeansOfNumericAtts": 50.732021276595745,
        "Quartile1MutualInformation": null,
        "Quartile1SkewnessOfNumericAtts": 0.943489868776042,
        "Quartile1StdDevOfNumericAtts": 42.56775165652132,
        "Quartile2AttributeEntropy": null,
        "Quartile2KurtosisOfNumericAtts": 0.6494899932734246,
        "Quartile2MeansOfNumericAtts": 51.507446808510636,
        "Quartile2MutualInformation": null,
        "Quartile2SkewnessOfNumericAtts": 1.0382484713200821,
        "Quartile2StdDevOfNumericAtts": 43.32996113332571,
        "Quartile3AttributeEntropy": null,
        "Quartile3KurtosisOfNumericAtts": 1.2974024264104842,
        "Quartile3MeansOfNumericAtts": 52.22755319148936,
        "Quartile3MutualInformation": null,
        "Quartile3SkewnessOfNumericAtts": 1.182409757240932,
        "Quartile3StdDevOfNumericAtts": 45.00449222595071,
        "REPTreeDepth1AUC": 0.9044373769498714,
        "REPTreeDepth1ErrRate": 0.10638297872340426,
        "REPTreeDepth1Kappa": 0.777149793270872,
        "REPTreeDepth2AUC": 0.9044373769498714,
        "REPTreeDepth2ErrRate": 0.10638297872340426,
        "REPTreeDepth2Kappa": 0.777149793270872,
        "REPTreeDepth3AUC": 0.9044373769498714,
        "REPTreeDepth3ErrRate": 0.10638297872340426,
        "REPTreeDepth3Kappa": 0.777149793270872,
        "RandomTreeDepth1AUC": 0.8760033318188702,
        "RandomTreeDepth1ErrRate": 0.13191489361702127,
        "RandomTreeDepth1Kappa": 0.7316462224186835,
        "RandomTreeDepth2AUC": 0.8760033318188702,
        "RandomTreeDepth2ErrRate": 0.13191489361702127,
        "RandomTreeDepth2Kappa": 0.7316462224186835,
        "RandomTreeDepth3AUC": 0.8760033318188702,
        "RandomTreeDepth3ErrRate": 0.13191489361702127,
        "RandomTreeDepth3Kappa": 0.7316462224186835,
        "StdvNominalAttDistinctValues": 0,
        "kNN1NAUC": 0.875662577616235,
        "kNN1NErrRate": 0.10212765957446808,
        "kNN1NKappa": 0.7824241956639147
    },
    "tags": [
        {
            "tag": "binarized",
            "uploader": "1"
        },
        {
            "tag": "mythbusting_1",
            "uploader": "1"
        },
        {
            "tag": "study_1",
            "uploader": "2"
        },
        {
            "tag": "study_123",
            "uploader": "3886"
        },
        {
            "tag": "study_15",
            "uploader": "939"
        },
        {
            "tag": "study_20",
            "uploader": "939"
        },
        {
            "tag": "study_41",
            "uploader": "1"
        },
        {
            "tag": "study_7",
            "uploader": "64"
        },
        {
            "tag": "study_88",
            "uploader": "4209"
        },
        {
            "tag": "study_236",
            "uploader": "0"
        }
    ],
    "features": [
        {
            "name": "binaryClass",
            "index": "12",
            "type": "nominal",
            "distinct": "2",
            "missing": "0",
            "target": "1",
            "distr": [
                [
                    "P",
                    "N"
                ],
                [
                    [
                        "142",
                        "0"
                    ],
                    [
                        "0",
                        "93"
                    ]
                ]
            ]
        },
        {
            "name": "col_1",
            "index": "0",
            "type": "numeric",
            "distinct": "235",
            "missing": "0",
            "min": "1749",
            "max": "1983",
            "mean": "1866",
            "stdev": "68"
        },
        {
            "name": "col_2",
            "index": "1",
            "type": "numeric",
            "distinct": "203",
            "missing": "0",
            "min": "0",
            "max": "217",
            "mean": "49",
            "stdev": "43"
        },
        {
            "name": "col_3",
            "index": "2",
            "type": "numeric",
            "distinct": "211",
            "missing": "0",
            "min": "0",
            "max": "182",
            "mean": "51",
            "stdev": "42"
        },
        {
            "name": "col_4",
            "index": "3",
            "type": "numeric",
            "distinct": "209",
            "missing": "0",
            "min": "0",
            "max": "191",
            "mean": "50",
            "stdev": "41"
        },
        {
            "name": "col_5",
            "index": "4",
            "type": "numeric",
            "distinct": "202",
            "missing": "0",
            "min": "0",
            "max": "196",
            "mean": "51",
            "stdev": "43"
        },
        {
            "name": "col_6",
            "index": "5",
            "type": "numeric",
            "distinct": "207",
            "missing": "0",
            "min": "0",
            "max": "239",
            "mean": "52",
            "stdev": "45"
        },
        {
            "name": "col_7",
            "index": "6",
            "type": "numeric",
            "distinct": "205",
            "missing": "0",
            "min": "0",
            "max": "201",
            "mean": "52",
            "stdev": "43"
        },
        {
            "name": "col_8",
            "index": "7",
            "type": "numeric",
            "distinct": "215",
            "missing": "0",
            "min": "0",
            "max": "191",
            "mean": "51",
            "stdev": "44"
        },
        {
            "name": "col_9",
            "index": "8",
            "type": "numeric",
            "distinct": "202",
            "missing": "0",
            "min": "0",
            "max": "200",
            "mean": "52",
            "stdev": "45"
        },
        {
            "name": "col_10",
            "index": "9",
            "type": "numeric",
            "distinct": "200",
            "missing": "0",
            "min": "0",
            "max": "236",
            "mean": "52",
            "stdev": "46"
        },
        {
            "name": "col_11",
            "index": "10",
            "type": "numeric",
            "distinct": "207",
            "missing": "0",
            "min": "0",
            "max": "254",
            "mean": "52",
            "stdev": "44"
        },
        {
            "name": "col_12",
            "index": "11",
            "type": "numeric",
            "distinct": "209",
            "missing": "0",
            "min": "0",
            "max": "211",
            "mean": "51",
            "stdev": "43"
        }
    ],
    "nr_of_issues": 0,
    "nr_of_downvotes": 0,
    "nr_of_likes": 0,
    "nr_of_downloads": 8,
    "total_downloads": 8,
    "reach": 8,
    "reuse": 15,
    "impact_of_reuse": 0,
    "reach_of_reuse": 0,
    "impact": 15
}