{
    "data_id": "49",
    "name": "pc4",
    "exact_name": "pc4",
    "version": 1,
    "version_label": null,
    "description": "**Author**:   \n**Source**: Unknown - Date unknown  \n**Please cite**:   \n\n%-*- text -*-\n%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\nThis is a PROMISE data set made publicly available in order to encourage\nrepeatable, verifiable, refutable, and\/or improvable predictive models\nof software engineering.\n\nIf you publish material based on PROMISE data sets then, please\nfollow the acknowledgment guidelines posted on the PROMISE repository\nweb page http:\/\/promise.site.uottawa.ca\/SERepository .\n%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n1. Title\/Topic: PC4\/ defect prediction\n\n(c) 2007 : Tim Menzies  : tim@menzies.us\nThis data set is distributed under the\nCreative Commons Attribution-Share Alike 3.0 License\nhttp:\/\/creativecommons.org\/licenses\/by-sa\/3.0\/\n\nYou are free:\n\n* to Share -- copy, distribute and transmit the work\n* to Remix -- to adapt the work\n\nUnder the following conditions:\n\nAttribution. You must attribute the work in the manner specified by\nthe author or licensor (but not in any way that suggests that they endorse\nyou or your use of the work).\n\nShare Alike. If you alter, transform, or build upon this work, you\nmay distribute the resulting work only under the same, similar or a\ncompatible license.\n\n* For any reuse or distribution, you must make clear to others the\nlicense terms of this work.\n* Any of the above conditions can be waived if you get permission from\nthe copyright holder.\n* Apart from the remix rights granted under this license, nothing in\nthis license impairs or restricts the author's moral rights.\nFor more deatils on this data set, see\nhttp:\/\/promisedata.org\/repository\/data\/kc2\/kc2.arff",
    "format": "ARFF",
    "uploader": "Joaquin Vanschoren",
    "uploader_id": 2,
    "visibility": "public",
    "creator": null,
    "contributor": null,
    "date": "2014-10-06 23:57:12",
    "update_comment": null,
    "last_update": "2014-10-06 23:57:12",
    "licence": "Public",
    "status": "active",
    "error_message": null,
    "url": "https:\/\/www.openml.org\/data\/download\/53932\/pc4.arff",
    "default_target_attribute": "c",
    "row_id_attribute": null,
    "ignore_attribute": null,
    "runs": 0,
    "suggest": {
        "input": [
            "pc4",
            "%-*- text -*- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% This is a PROMISE data set made publicly available in order to encourage repeatable, verifiable, refutable, and\/or improvable predictive models of software engineering. If you publish material based on PROMISE data sets then, please follow the acknowledgment guidelines posted on the PROMISE repository web page http:\/\/promise.site.uottawa.ca\/SERepository . %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% "
        ],
        "weight": 5
    },
    "qualities": {
        "NumberOfInstances": 1458,
        "NumberOfFeatures": 38,
        "NumberOfClasses": 2,
        "NumberOfMissingValues": 0,
        "NumberOfInstancesWithMissingValues": 0,
        "NumberOfNumericFeatures": 37,
        "NumberOfSymbolicFeatures": 1,
        "AutoCorrelation": 0.7803706245710363,
        "CfsSubsetEval_DecisionStumpAUC": 0.8296260533707867,
        "CfsSubsetEval_DecisionStumpErrRate": 0.1083676268861454,
        "CfsSubsetEval_DecisionStumpKappa": 0.3020372547356171,
        "CfsSubsetEval_NaiveBayesAUC": 0.8296260533707867,
        "CfsSubsetEval_NaiveBayesErrRate": 0.1083676268861454,
        "CfsSubsetEval_NaiveBayesKappa": 0.3020372547356171,
        "CfsSubsetEval_kNN1NAUC": 0.8296260533707867,
        "CfsSubsetEval_kNN1NErrRate": 0.1083676268861454,
        "CfsSubsetEval_kNN1NKappa": 0.3020372547356171,
        "ClassEntropy": 0.5353247216329435,
        "DecisionStumpAUC": 0.8338066186797752,
        "DecisionStumpErrRate": 0.12208504801097393,
        "DecisionStumpKappa": 0,
        "Dimensionality": 0.02606310013717421,
        "EquivalentNumberOfAtts": null,
        "J48.00001.AUC": 0.7075732970505618,
        "J48.00001.ErrRate": 0.11179698216735254,
        "J48.00001.Kappa": 0.4302366282275657,
        "J48.0001.AUC": 0.7075732970505618,
        "J48.0001.ErrRate": 0.11179698216735254,
        "J48.0001.Kappa": 0.4302366282275657,
        "J48.001.AUC": 0.7075732970505618,
        "J48.001.ErrRate": 0.11179698216735254,
        "J48.001.Kappa": 0.4302366282275657,
        "MajorityClassPercentage": 87.79149519890261,
        "MajorityClassSize": 1280,
        "MaxAttributeEntropy": null,
        "MaxKurtosisOfNumericAtts": 771.6332888137742,
        "MaxMeansOfNumericAtts": 19505.519540466397,
        "MaxMutualInformation": null,
        "MaxNominalAttDistinctValues": 2,
        "MaxSkewnessOfNumericAtts": 25.48385197642493,
        "MaxStdDevOfNumericAtts": 62600.255064694364,
        "MeanAttributeEntropy": null,
        "MeanKurtosisOfNumericAtts": 105.0871480075218,
        "MeanMeansOfNumericAtts": 583.4640334779226,
        "MeanMutualInformation": null,
        "MeanNoiseToSignalRatio": null,
        "MeanNominalAttDistinctValues": 2,
        "MeanSkewnessOfNumericAtts": 6.450282232943059,
        "MeanStdDevOfNumericAtts": 1837.8290669668518,
        "MinAttributeEntropy": null,
        "MinKurtosisOfNumericAtts": -1.5109530299949823,
        "MinMeansOfNumericAtts": 0.07064471879286696,
        "MinMutualInformation": null,
        "MinNominalAttDistinctValues": 2,
        "MinSkewnessOfNumericAtts": -0.46393068881698063,
        "MinStdDevOfNumericAtts": 0.11986237027041259,
        "MinorityClassPercentage": 12.208504801097392,
        "MinorityClassSize": 178,
        "NaiveBayesAUC": 0.8191864300122533,
        "NaiveBayesErrRate": 0.16872427983539096,
        "NaiveBayesKappa": 0.3008202984888418,
        "NumberOfBinaryFeatures": 1,
        "PercentageOfBinaryFeatures": 2.631578947368421,
        "PercentageOfInstancesWithMissingValues": 0,
        "PercentageOfMissingValues": 0,
        "PercentageOfNumericFeatures": 97.36842105263158,
        "PercentageOfSymbolicFeatures": 2.631578947368421,
        "Quartile1AttributeEntropy": null,
        "Quartile1KurtosisOfNumericAtts": 9.73606658084686,
        "Quartile1MeansOfNumericAtts": 1.4681069958847743,
        "Quartile1MutualInformation": null,
        "Quartile1SkewnessOfNumericAtts": 2.8161318073942256,
        "Quartile1StdDevOfNumericAtts": 2.021356636772319,
        "Quartile2AttributeEntropy": null,
        "Quartile2KurtosisOfNumericAtts": 48.04994209767429,
        "Quartile2MeansOfNumericAtts": 6.997256515775034,
        "Quartile2MutualInformation": null,
        "Quartile2SkewnessOfNumericAtts": 5.710990952498306,
        "Quartile2StdDevOfNumericAtts": 9.48740590701204,
        "Quartile3AttributeEntropy": null,
        "Quartile3KurtosisOfNumericAtts": 173.8806340260204,
        "Quartile3MeansOfNumericAtts": 19.708847736625515,
        "Quartile3MutualInformation": null,
        "Quartile3SkewnessOfNumericAtts": 9.488261932499196,
        "Quartile3StdDevOfNumericAtts": 26.373775044950506,
        "REPTreeDepth1AUC": 0.8679402212078651,
        "REPTreeDepth1ErrRate": 0.1111111111111111,
        "REPTreeDepth1Kappa": 0.34952301218356824,
        "REPTreeDepth2AUC": 0.8679402212078651,
        "REPTreeDepth2ErrRate": 0.1111111111111111,
        "REPTreeDepth2Kappa": 0.34952301218356824,
        "REPTreeDepth3AUC": 0.8679402212078651,
        "REPTreeDepth3ErrRate": 0.1111111111111111,
        "REPTreeDepth3Kappa": 0.34952301218356824,
        "RandomTreeDepth1AUC": 0.6578322507022473,
        "RandomTreeDepth1ErrRate": 0.13786008230452676,
        "RandomTreeDepth1Kappa": 0.32590363939992,
        "RandomTreeDepth2AUC": 0.6578322507022473,
        "RandomTreeDepth2ErrRate": 0.13786008230452676,
        "RandomTreeDepth2Kappa": 0.32590363939992,
        "RandomTreeDepth3AUC": 0.6578322507022473,
        "RandomTreeDepth3ErrRate": 0.13786008230452676,
        "RandomTreeDepth3Kappa": 0.32590363939992,
        "StdvNominalAttDistinctValues": 0,
        "kNN1NAUC": 0.6835147471910112,
        "kNN1NErrRate": 0.149519890260631,
        "kNN1NKappa": 0.31895436040282854
    },
    "tags": [
        {
            "tag": "study_14",
            "uploader": "1"
        },
        {
            "tag": "study_1",
            "uploader": "0"
        },
        {
            "tag": "study_110",
            "uploader": "0"
        },
        {
            "tag": "study_284",
            "uploader": "0"
        },
        {
            "tag": "study_378",
            "uploader": "0"
        },
        {
            "tag": "study_665",
            "uploader": "0"
        },
        {
            "tag": "study_121",
            "uploader": "0"
        },
        {
            "tag": "study_757",
            "uploader": "0"
        },
        {
            "tag": "study_284",
            "uploader": "0"
        },
        {
            "tag": "study_579",
            "uploader": "0"
        },
        {
            "tag": "study_538",
            "uploader": "0"
        }
    ],
    "features": [
        {
            "name": "c",
            "index": "37",
            "type": "nominal",
            "distinct": "2",
            "missing": "0",
            "target": "1",
            "distr": [
                [
                    "FALSE",
                    "TRUE"
                ],
                [
                    [
                        "1280",
                        "0"
                    ],
                    [
                        "0",
                        "178"
                    ]
                ]
            ]
        },
        {
            "name": "HALSTEAD_ERROR_EST",
            "index": "20",
            "type": "numeric",
            "distinct": "120",
            "missing": "0",
            "min": "0",
            "max": "9",
            "mean": "0",
            "stdev": "0"
        },
        {
            "name": "HALSTEAD_EFFORT",
            "index": "19",
            "type": "numeric",
            "distinct": "1165",
            "missing": "0",
            "min": "0",
            "max": "1401719",
            "mean": "19506",
            "stdev": "62600"
        },
        {
            "name": "HALSTEAD_LENGTH",
            "index": "21",
            "type": "numeric",
            "distinct": "336",
            "missing": "0",
            "min": "0",
            "max": "2867",
            "mean": "101",
            "stdev": "171"
        },
        {
            "name": "HALSTEAD_LEVEL",
            "index": "22",
            "type": "numeric",
            "distinct": "40",
            "missing": "0",
            "min": "0",
            "max": "1",
            "mean": "0",
            "stdev": "0"
        },
        {
            "name": "HALSTEAD_PROG_TIME",
            "index": "23",
            "type": "numeric",
            "distinct": "1159",
            "missing": "0",
            "min": "0",
            "max": "77873",
            "mean": "1084",
            "stdev": "3478"
        },
        {
            "name": "HALSTEAD_VOLUME",
            "index": "24",
            "type": "numeric",
            "distinct": "941",
            "missing": "0",
            "min": "0",
            "max": "26220",
            "mean": "544",
            "stdev": "1199"
        },
        {
            "name": "MAINTENANCE_SEVERITY",
            "index": "25",
            "type": "numeric",
            "distinct": "74",
            "missing": "0",
            "min": "0",
            "max": "1",
            "mean": "1",
            "stdev": "0"
        },
        {
            "name": "MODIFIED_CONDITION_COUNT",
            "index": "26",
            "type": "numeric",
            "distinct": "28",
            "missing": "0",
            "min": "0",
            "max": "93",
            "mean": "2",
            "stdev": "4"
        },
        {
            "name": "MULTIPLE_CONDITION_COUNT",
            "index": "27",
            "type": "numeric",
            "distinct": "40",
            "missing": "0",
            "min": "0",
            "max": "186",
            "mean": "4",
            "stdev": "8"
        },
        {
            "name": "NODE_COUNT",
            "index": "28",
            "type": "numeric",
            "distinct": "89",
            "missing": "0",
            "min": "2",
            "max": "286",
            "mean": "16",
            "stdev": "21"
        },
        {
            "name": "NORMALIZED_CYLOMATIC_COMPLEXITY",
            "index": "29",
            "type": "numeric",
            "distinct": "67",
            "missing": "0",
            "min": "0",
            "max": "2",
            "mean": "0",
            "stdev": "0"
        },
        {
            "name": "NUM_OPERANDS",
            "index": "30",
            "type": "numeric",
            "distinct": "184",
            "missing": "0",
            "min": "0",
            "max": "1403",
            "mean": "39",
            "stdev": "71"
        },
        {
            "name": "NUM_OPERATORS",
            "index": "31",
            "type": "numeric",
            "distinct": "245",
            "missing": "0",
            "min": "0",
            "max": "1687",
            "mean": "63",
            "stdev": "104"
        },
        {
            "name": "NUM_UNIQUE_OPERANDS",
            "index": "32",
            "type": "numeric",
            "distinct": "71",
            "missing": "0",
            "min": "0",
            "max": "601",
            "mean": "13",
            "stdev": "21"
        },
        {
            "name": "NUM_UNIQUE_OPERATORS",
            "index": "33",
            "type": "numeric",
            "distinct": "38",
            "missing": "0",
            "min": "0",
            "max": "38",
            "mean": "12",
            "stdev": "7"
        },
        {
            "name": "NUMBER_OF_LINES",
            "index": "34",
            "type": "numeric",
            "distinct": "171",
            "missing": "0",
            "min": "1",
            "max": "802",
            "mean": "38",
            "stdev": "50"
        },
        {
            "name": "PERCENT_COMMENTS",
            "index": "35",
            "type": "numeric",
            "distinct": "394",
            "missing": "0",
            "min": "0",
            "max": "93",
            "mean": "17",
            "stdev": "21"
        },
        {
            "name": "LOC_TOTAL",
            "index": "36",
            "type": "numeric",
            "distinct": "116",
            "missing": "0",
            "min": "0",
            "max": "210",
            "mean": "21",
            "stdev": "25"
        },
        {
            "name": "DESIGN_COMPLEXITY",
            "index": "10",
            "type": "numeric",
            "distinct": "31",
            "missing": "0",
            "min": "1",
            "max": "71",
            "mean": "3",
            "stdev": "4"
        },
        {
            "name": "BRANCH_COUNT",
            "index": "1",
            "type": "numeric",
            "distinct": "61",
            "missing": "0",
            "min": "1",
            "max": "187",
            "mean": "8",
            "stdev": "13"
        },
        {
            "name": "CALL_PAIRS",
            "index": "2",
            "type": "numeric",
            "distinct": "22",
            "missing": "0",
            "min": "0",
            "max": "24",
            "mean": "2",
            "stdev": "3"
        },
        {
            "name": "LOC_CODE_AND_COMMENT",
            "index": "3",
            "type": "numeric",
            "distinct": "36",
            "missing": "0",
            "min": "0",
            "max": "68",
            "mean": "2",
            "stdev": "5"
        },
        {
            "name": "LOC_COMMENTS",
            "index": "4",
            "type": "numeric",
            "distinct": "57",
            "missing": "0",
            "min": "0",
            "max": "78",
            "mean": "5",
            "stdev": "9"
        },
        {
            "name": "CONDITION_COUNT",
            "index": "5",
            "type": "numeric",
            "distinct": "41",
            "missing": "0",
            "min": "0",
            "max": "372",
            "mean": "7",
            "stdev": "16"
        },
        {
            "name": "CYCLOMATIC_COMPLEXITY",
            "index": "6",
            "type": "numeric",
            "distinct": "43",
            "missing": "0",
            "min": "1",
            "max": "94",
            "mean": "5",
            "stdev": "7"
        },
        {
            "name": "CYCLOMATIC_DENSITY",
            "index": "7",
            "type": "numeric",
            "distinct": "70",
            "missing": "0",
            "min": "0",
            "max": "9",
            "mean": "0",
            "stdev": "0"
        },
        {
            "name": "DECISION_COUNT",
            "index": "8",
            "type": "numeric",
            "distinct": "23",
            "missing": "0",
            "min": "0",
            "max": "186",
            "mean": "3",
            "stdev": "8"
        },
        {
            "name": "DECISION_DENSITY",
            "index": "9",
            "type": "numeric",
            "distinct": "5",
            "missing": "0",
            "min": "0",
            "max": "5",
            "mean": "1",
            "stdev": "1"
        },
        {
            "name": "LOC_BLANK",
            "index": "0",
            "type": "numeric",
            "distinct": "54",
            "missing": "0",
            "min": "0",
            "max": "90",
            "mean": "7",
            "stdev": "10"
        },
        {
            "name": "DESIGN_DENSITY",
            "index": "11",
            "type": "numeric",
            "distinct": "76",
            "missing": "0",
            "min": "0",
            "max": "1",
            "mean": "1",
            "stdev": "0"
        },
        {
            "name": "EDGE_COUNT",
            "index": "12",
            "type": "numeric",
            "distinct": "105",
            "missing": "0",
            "min": "1",
            "max": "357",
            "mean": "19",
            "stdev": "28"
        },
        {
            "name": "ESSENTIAL_COMPLEXITY",
            "index": "13",
            "type": "numeric",
            "distinct": "25",
            "missing": "0",
            "min": "1",
            "max": "70",
            "mean": "2",
            "stdev": "4"
        },
        {
            "name": "ESSENTIAL_DENSITY",
            "index": "14",
            "type": "numeric",
            "distinct": "2",
            "missing": "0",
            "min": "0",
            "max": "1",
            "mean": "0",
            "stdev": "0"
        },
        {
            "name": "LOC_EXECUTABLE",
            "index": "15",
            "type": "numeric",
            "distinct": "107",
            "missing": "0",
            "min": "0",
            "max": "196",
            "mean": "19",
            "stdev": "22"
        },
        {
            "name": "PARAMETER_COUNT",
            "index": "16",
            "type": "numeric",
            "distinct": "8",
            "missing": "0",
            "min": "0",
            "max": "7",
            "mean": "1",
            "stdev": "1"
        },
        {
            "name": "HALSTEAD_CONTENT",
            "index": "17",
            "type": "numeric",
            "distinct": "1021",
            "missing": "0",
            "min": "0",
            "max": "2246",
            "mean": "26",
            "stdev": "69"
        },
        {
            "name": "HALSTEAD_DIFFICULTY",
            "index": "18",
            "type": "numeric",
            "distinct": "708",
            "missing": "0",
            "min": "0",
            "max": "129",
            "mean": "17",
            "stdev": "17"
        }
    ],
    "nr_of_issues": 0,
    "nr_of_downvotes": 0,
    "nr_of_likes": 0,
    "nr_of_downloads": 0,
    "total_downloads": 0,
    "reach": 0,
    "reuse": 11,
    "impact_of_reuse": 0,
    "reach_of_reuse": 0,
    "impact": 11
}