{
    "data_id": "44971",
    "name": "white_wine",
    "exact_name": "white_wine",
    "version": 7,
    "version_label": null,
    "description": "**Data Description**\n\nThe data were collected from May\/2004 to February\/2007 using only protected designation of origin samples that were tested at the official certification entity (CVRVV). The CVRVV is an inter-professional organization with the goal of improving the quality and marketing of vinho verde. The data were recorded by a computerized system (iLab), which automatically manages the process of wine sample testing from producer requests to laboratory and sensory analysis. Each entry denotes a given test (analytical or sensory).\n\nThe goal is using chemical analysis determine the quality of the wine.\n\nThis version of the dataset contains only the white wine.\n\n**Attribute Description**\n\n1. *fixed_acidity*\n2. *volatile_acidity*\n3. *citric_acid*\n4. *residual_sugar*\n5. *chlorides*\n6. *free_sulfur_dioxide*\n7. *total_sulfur_dioxide*\n8. *density*\n9. *pH*\n10. *sulphates*\n11. *alcohol*\n12. *quality* - target feature",
    "format": "arff",
    "uploader": "Sebastian Fischer",
    "uploader_id": 30127,
    "visibility": "public",
    "creator": null,
    "contributor": null,
    "date": "2022-12-22 16:13:13",
    "update_comment": null,
    "last_update": "2022-12-22 16:13:13",
    "licence": "CC BY 4.0",
    "status": "active",
    "error_message": null,
    "url": "https:\/\/api.openml.org\/data\/download\/22111835\/file22f16150a82cd.arff",
    "default_target_attribute": "quality",
    "row_id_attribute": null,
    "ignore_attribute": null,
    "runs": 0,
    "suggest": {
        "input": [
            "white_wine",
            "The data were collected from May\/2004 to February\/2007 using only protected designation of origin samples that were tested at the official certification entity (CVRVV). The CVRVV is an inter-professional organization with the goal of improving the quality and marketing of vinho verde. The data were recorded by a computerized system (iLab), which automatically manages the process of wine sample testing from producer requests to laboratory and sensory analysis. Each entry denotes a given test (ana "
        ],
        "weight": 5
    },
    "qualities": {
        "NumberOfInstances": 4898,
        "NumberOfFeatures": 12,
        "NumberOfClasses": 0,
        "NumberOfMissingValues": 0,
        "NumberOfInstancesWithMissingValues": 0,
        "NumberOfNumericFeatures": 12,
        "NumberOfSymbolicFeatures": 0,
        "MajorityClassSize": null,
        "MinorityClassPercentage": null,
        "MinorityClassSize": null,
        "NumberOfBinaryFeatures": 0,
        "PercentageOfBinaryFeatures": 0,
        "PercentageOfInstancesWithMissingValues": 0,
        "AutoCorrelation": 0.20441086379415968,
        "PercentageOfMissingValues": 0,
        "Dimensionality": 0.002449979583503471,
        "PercentageOfNumericFeatures": 100,
        "MajorityClassPercentage": null,
        "PercentageOfSymbolicFeatures": 0
    },
    "tags": [
        {
            "tag": "Statistics",
            "uploader": "38960"
        },
        {
            "tag": "study_353",
            "uploader": "0"
        }
    ],
    "features": [
        {
            "name": "quality",
            "index": "11",
            "type": "numeric",
            "distinct": "7",
            "missing": "0",
            "target": "1",
            "min": "3",
            "max": "9",
            "mean": "6",
            "stdev": "1"
        },
        {
            "name": "fixed_acidity",
            "index": "0",
            "type": "numeric",
            "distinct": "68",
            "missing": "0",
            "min": "4",
            "max": "14",
            "mean": "7",
            "stdev": "1"
        },
        {
            "name": "volatile_acidity",
            "index": "1",
            "type": "numeric",
            "distinct": "125",
            "missing": "0",
            "min": "0",
            "max": "1",
            "mean": "0",
            "stdev": "0"
        },
        {
            "name": "citric_acid",
            "index": "2",
            "type": "numeric",
            "distinct": "87",
            "missing": "0",
            "min": "0",
            "max": "2",
            "mean": "0",
            "stdev": "0"
        },
        {
            "name": "residual_sugar",
            "index": "3",
            "type": "numeric",
            "distinct": "310",
            "missing": "0",
            "min": "1",
            "max": "66",
            "mean": "6",
            "stdev": "5"
        },
        {
            "name": "chlorides",
            "index": "4",
            "type": "numeric",
            "distinct": "160",
            "missing": "0",
            "min": "0",
            "max": "0",
            "mean": "0",
            "stdev": "0"
        },
        {
            "name": "free_sulfur_dioxide",
            "index": "5",
            "type": "numeric",
            "distinct": "132",
            "missing": "0",
            "min": "2",
            "max": "289",
            "mean": "35",
            "stdev": "17"
        },
        {
            "name": "total_sulfur_dioxide",
            "index": "6",
            "type": "numeric",
            "distinct": "251",
            "missing": "0",
            "min": "9",
            "max": "440",
            "mean": "138",
            "stdev": "42"
        },
        {
            "name": "density",
            "index": "7",
            "type": "numeric",
            "distinct": "890",
            "missing": "0",
            "min": "1",
            "max": "1",
            "mean": "1",
            "stdev": "0"
        },
        {
            "name": "pH",
            "index": "8",
            "type": "numeric",
            "distinct": "103",
            "missing": "0",
            "min": "3",
            "max": "4",
            "mean": "3",
            "stdev": "0"
        },
        {
            "name": "sulphates",
            "index": "9",
            "type": "numeric",
            "distinct": "79",
            "missing": "0",
            "min": "0",
            "max": "1",
            "mean": "0",
            "stdev": "0"
        },
        {
            "name": "alcohol",
            "index": "10",
            "type": "numeric",
            "distinct": "103",
            "missing": "0",
            "min": "8",
            "max": "14",
            "mean": "11",
            "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
}