{
    "data_id": "472",
    "name": "lupus",
    "exact_name": "lupus",
    "version": 1,
    "version_label": null,
    "description": "**Author**:   \n**Source**: Unknown - Date unknown  \n**Please cite**:   \n\n87 persons with lupus nephritis. Followed up 15+ years. 35 deaths. Var =\nduration of disease. Over 40 baseline variables avaiable from authors.\nDescription :\nFor description of this data set arising from 87 persons\nwith lupus nephritis followed for 15+ years after an initial\nrenal biopsy (the starting point of follow-up) see the introduction to\nAbrahamowicz, MacKenzie and Esdaile (December 1996 issue).\nThis data set only contains time to death\/censoring, indicator,\nduration and log(1+duration), where duration is the duration\nof untreated  disease prior to biopsy. This variable was the\nfocus in the aforementioned JASA article because it clearly\nviolates the proportionality of hazards assumption. More than\n40 other variables acquired at baseline are available from\nauthors.\nPermission :\nThis data can be freely used for non-commercial purposes and\ndistributed freely.\nMichal Abrahamowicz, Todd MacKenzie and John Esdaile\n\n\nInformation about the dataset\nCLASSTYPE: nominal\nCLASSINDEX: 2",
    "format": "ARFF",
    "uploader": "Joaquin Vanschoren",
    "uploader_id": 2,
    "visibility": "public",
    "creator": "Michal Abrahamowicz, Todd MacKenzie and John Esdaile",
    "contributor": null,
    "date": "2014-09-28 23:51:30",
    "update_comment": null,
    "last_update": "2014-09-28 23:51:30",
    "licence": "Public",
    "status": "active",
    "error_message": null,
    "url": "https:\/\/www.openml.org\/data\/download\/52584\/lupus.arff",
    "default_target_attribute": "STATUS",
    "row_id_attribute": null,
    "ignore_attribute": null,
    "runs": 737,
    "suggest": {
        "input": [
            "lupus",
            "87 persons with lupus nephritis. Followed up 15+ years. 35 deaths. Var = duration of disease. Over 40 baseline variables avaiable from authors. Description : For description of this data set arising from 87 persons with lupus nephritis followed for 15+ years after an initial renal biopsy (the starting point of follow-up) see the introduction to Abrahamowicz, MacKenzie and Esdaile (December 1996 issue). This data set only contains time to death\/censoring, indicator, duration and log(1+duration),  "
        ],
        "weight": 5
    },
    "qualities": {
        "NumberOfInstances": 87,
        "NumberOfFeatures": 4,
        "NumberOfClasses": 2,
        "NumberOfMissingValues": 0,
        "NumberOfInstancesWithMissingValues": 0,
        "NumberOfNumericFeatures": 3,
        "NumberOfSymbolicFeatures": 1,
        "MeanSkewnessOfNumericAtts": 1.2327888171003378,
        "Quartile1StdDevOfNumericAtts": 1.3296488654225345,
        "REPTreeDepth2AUC": 0.6956043956043956,
        "CfsSubsetEval_kNN1NErrRate": 0.28735632183908044,
        "kNN1NAUC": 0.7178571428571429,
        "J48.001.Kappa": 0.4052502050861363,
        "MeanStdDevOfNumericAtts": 32.028810065034314,
        "Quartile2AttributeEntropy": null,
        "REPTreeDepth2ErrRate": 0.3103448275862069,
        "CfsSubsetEval_kNN1NKappa": 0.4052502050861363,
        "kNN1NErrRate": 0.2988505747126437,
        "MajorityClassPercentage": 59.77011494252874,
        "MinAttributeEntropy": null,
        "Quartile2KurtosisOfNumericAtts": -0.3654873269423793,
        "REPTreeDepth2Kappa": 0.3455001393145724,
        "ClassEntropy": 0.9722794620968821,
        "kNN1NKappa": 0.3899676375404531,
        "MajorityClassSize": 52,
        "MinKurtosisOfNumericAtts": -0.9467504399686804,
        "Quartile2MeansOfNumericAtts": 10.480459770114939,
        "REPTreeDepth3AUC": 0.6956043956043956,
        "DecisionStumpAUC": 0.7167582417582419,
        "MaxAttributeEntropy": null,
        "MinMeansOfNumericAtts": 1.417816091954023,
        "Quartile2MutualInformation": null,
        "REPTreeDepth3ErrRate": 0.3103448275862069,
        "DecisionStumpErrRate": 0.2988505747126437,
        "MaxKurtosisOfNumericAtts": 9.120860777419237,
        "MinMutualInformation": null,
        "Quartile2SkewnessOfNumericAtts": 0.7895651565941083,
        "REPTreeDepth3Kappa": 0.3455001393145724,
        "DecisionStumpKappa": 0.38432226456178553,
        "MaxMeansOfNumericAtts": 142.34482758620692,
        "MinNominalAttDistinctValues": 2,
        "PercentageOfBinaryFeatures": 25,
        "Quartile2StdDevOfNumericAtts": 21.40071634902135,
        "RandomTreeDepth1AUC": 0.6315934065934066,
        "Dimensionality": 0.04597701149425287,
        "MaxMutualInformation": null,
        "MinSkewnessOfNumericAtts": -0.13500053871048218,
        "PercentageOfInstancesWithMissingValues": 0,
        "Quartile3AttributeEntropy": null,
        "RandomTreeDepth1ErrRate": 0.367816091954023,
        "EquivalentNumberOfAtts": null,
        "MaxNominalAttDistinctValues": 2,
        "MinStdDevOfNumericAtts": 1.3296488654225345,
        "PercentageOfMissingValues": 0,
        "Quartile3KurtosisOfNumericAtts": 9.120860777419237,
        "AutoCorrelation": 0.47674418604651164,
        "RandomTreeDepth1Kappa": 0.2560128273650455,
        "J48.00001.AUC": 0.7255494505494506,
        "MaxSkewnessOfNumericAtts": 3.0438018334173873,
        "MinorityClassPercentage": 40.229885057471265,
        "PercentageOfNumericFeatures": 75,
        "Quartile3MeansOfNumericAtts": 142.34482758620692,
        "CfsSubsetEval_DecisionStumpAUC": 0.7255494505494506,
        "RandomTreeDepth2AUC": 0.6315934065934066,
        "J48.00001.ErrRate": 0.28735632183908044,
        "MaxStdDevOfNumericAtts": 73.35606498065906,
        "MinorityClassSize": 35,
        "PercentageOfSymbolicFeatures": 25,
        "Quartile3MutualInformation": null,
        "CfsSubsetEval_DecisionStumpErrRate": 0.28735632183908044,
        "RandomTreeDepth2ErrRate": 0.367816091954023,
        "J48.00001.Kappa": 0.4052502050861363,
        "MeanAttributeEntropy": null,
        "NaiveBayesAUC": 0.7057155488189971,
        "Quartile1AttributeEntropy": null,
        "Quartile3SkewnessOfNumericAtts": 3.0438018334173873,
        "CfsSubsetEval_DecisionStumpKappa": 0.4052502050861363,
        "RandomTreeDepth2Kappa": 0.2560128273650455,
        "J48.0001.AUC": 0.7255494505494506,
        "MeanKurtosisOfNumericAtts": 2.602874336836059,
        "NaiveBayesErrRate": 0.27586206896551724,
        "Quartile1KurtosisOfNumericAtts": -0.9467504399686804,
        "Quartile3StdDevOfNumericAtts": 73.35606498065906,
        "CfsSubsetEval_NaiveBayesAUC": 0.7255494505494506,
        "RandomTreeDepth3AUC": 0.6315934065934066,
        "J48.0001.ErrRate": 0.28735632183908044,
        "MeanMeansOfNumericAtts": 51.41436781609196,
        "MeanMutualInformation": null,
        "NaiveBayesKappa": 0.41545352743561026,
        "Quartile1MeansOfNumericAtts": 1.417816091954023,
        "REPTreeDepth1AUC": 0.6956043956043956,
        "CfsSubsetEval_NaiveBayesErrRate": 0.28735632183908044,
        "RandomTreeDepth3ErrRate": 0.367816091954023,
        "J48.0001.Kappa": 0.4052502050861363,
        "MeanNoiseToSignalRatio": null,
        "NumberOfBinaryFeatures": 1,
        "Quartile1MutualInformation": null,
        "REPTreeDepth1ErrRate": 0.3103448275862069,
        "CfsSubsetEval_NaiveBayesKappa": 0.4052502050861363,
        "RandomTreeDepth3Kappa": 0.2560128273650455,
        "J48.001.AUC": 0.7255494505494506,
        "MeanNominalAttDistinctValues": 2,
        "Quartile1SkewnessOfNumericAtts": -0.13500053871048218,
        "REPTreeDepth1Kappa": 0.3455001393145724,
        "CfsSubsetEval_kNN1NAUC": 0.7255494505494506,
        "StdvNominalAttDistinctValues": 0,
        "J48.001.ErrRate": 0.28735632183908044
    },
    "tags": [
        {
            "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"
        }
    ],
    "features": [
        {
            "name": "STATUS",
            "index": "1",
            "type": "nominal",
            "distinct": "2",
            "missing": "0",
            "target": "1",
            "distr": [
                [
                    "alive",
                    "dead"
                ],
                [
                    [
                        "52",
                        "0"
                    ],
                    [
                        "0",
                        "35"
                    ]
                ]
            ]
        },
        {
            "name": "TIME",
            "index": "0",
            "type": "numeric",
            "distinct": "75",
            "missing": "0",
            "min": "4",
            "max": "276",
            "mean": "142",
            "stdev": "73"
        },
        {
            "name": "DURATION",
            "index": "2",
            "type": "numeric",
            "distinct": "27",
            "missing": "0",
            "min": "0",
            "max": "106",
            "mean": "10",
            "stdev": "21"
        },
        {
            "name": "LOG(1+DURATION)",
            "index": "3",
            "type": "numeric",
            "distinct": "27",
            "missing": "0",
            "min": "0",
            "max": "5",
            "mean": "1",
            "stdev": "1"
        }
    ],
    "nr_of_issues": 0,
    "nr_of_downvotes": 0,
    "nr_of_likes": 0,
    "nr_of_downloads": 0,
    "total_downloads": 0,
    "reach": 0,
    "reuse": 0,
    "impact_of_reuse": 0,
    "reach_of_reuse": 0,
    "impact": 0
}