{ "data_id": "343", "name": "white-clover", "exact_name": "white-clover", "version": 1, "version_label": null, "description": "**Author**: Ian Tarbotton \n**Source**: [original](http:\/\/www.cs.waikato.ac.nz\/ml\/weka\/datasets.html) - \n**Please cite**: \n\nWhite Clover Persistence Trials\n\nData source: Ian Tarbotton\nAgResearch, Whatawhata Research Centre, Hamilton, New Zealand\n\nThe objective was to determine the mechanisms which influence the persistence of white clover populations in summer dry hill land. In particular reference to the consequence of a severe summer dry period in 1993\/1994 and how it impacted on the performance of three white clover cultivars in an on-going experiment located at Whatawhata Research Centre.\n\nThe machine learning objective was to predict the amount of white clover in 1994 from the amount of white clover and other species in the years 1991 to 1994 as well as information on the 'strata' where the white clover was being grown.\n\nAttribute Information:\n1. strata - enumerated\n2. plot - enumerated\n3. paddock - enumerated\n4. WhiteClover-91 - white clover measurement in 1991 - real\n5. BareGround-91 - bare ground measurement in 1991 - real\n6. Cocksfoot-91 - cocksfoot measurement in 1991 - real\n7. OtherGrasses-91 - other grasses measurement in 1991 - real\n8. OtherLegumes-91 - other legumes measurement in 1991 - real\n9. RyeGrass-91 - ryegrass measurement in 1991 - real\n10. Weeds-91 - weeds measurement in 1991 - real\n11. WhiteClover-92 - white clover measurement in 1992 - real\n12. BareGround-92 - bare ground measurement in 1992 - real\n13. Cocksfoot-92 - cocksfoot measurement in 1992 - real\n14. OtherGrasses-92 - other grasses measurement in 1992 - real\n15. OtherLegumes-92 - other legumes measurement in 1992 - real\n16. RyeGrass-92 - ryegrass measurement in 1992 - real\n17. Weeds-92 - weeds measurement in 1992 - real\n18. WhiteClover-93 - white clover measurement in 1993 - real\n19. BareGround-93 - bare ground measurement in 1993 - real\n20. Cocksfoot-93 - cocksfoot measurement in 1993 - real\n21. OtherGrasses-93 - other grasses measurement in 1993 - real\n22. OtherLegumes-93 - other legumes measurement in 1993 - real\n23. RyeGrass-93 - ryegrass measurement in 1993 - real\n24. Weeds-93 - weeds measurement in 1993 - real\n25. BareGround-94 - bare ground measurement in 1994 - real\n26. Cocksfoot-94 - cocksfoot measurement in 1994 - real\n27. OtherGrasses-94 - other grasses measurement in 1994 - real\n28. OtherLegumes-94 - other legumes measurement in 1994 - real\n29. RyeGrass-94 - ryegrass measurement in 1994 - real\n30. Weeds-94 - weeds measurement in 1994 - real\n31. strata-combined - enumerated\n32. WhiteClover-94 - white clover measurement in 1994 - enumerated", "format": "ARFF", "uploader": "Joaquin Vanschoren", "uploader_id": 2, "visibility": "public", "creator": "\"Ian Tarbotton\"", "contributor": null, "date": "2014-08-26 22:29:30", "update_comment": null, "last_update": "2014-08-26 22:29:30", "licence": "Public", "status": "active", "error_message": null, "url": "https:\/\/www.openml.org\/data\/download\/52246\/php5J5AK6", "default_target_attribute": "WhiteClover-94", "row_id_attribute": null, "ignore_attribute": null, "runs": 858, "suggest": { "input": [ "white-clover", "White Clover Persistence Trials Data source: Ian Tarbotton AgResearch, Whatawhata Research Centre, Hamilton, New Zealand The objective was to determine the mechanisms which influence the persistence of white clover populations in summer dry hill land. In particular reference to the consequence of a severe summer dry period in 1993\/1994 and how it impacted on the performance of three white clover cultivars in an on-going experiment located at Whatawhata Research Centre. The machine learning objec " ], "weight": 5 }, "qualities": { "NumberOfInstances": 63, "NumberOfFeatures": 32, "NumberOfClasses": 4, "NumberOfMissingValues": 0, "NumberOfInstancesWithMissingValues": 0, "NumberOfNumericFeatures": 27, "NumberOfSymbolicFeatures": 5, "Quartile2SkewnessOfNumericAtts": 0.6796212438384653, "REPTreeDepth3Kappa": -0.005128205128204966, "DecisionStumpKappa": 0.041493775933609874, "MaxMeansOfNumericAtts": 30.51746031746032, "MinMutualInformation": 0.07865469901392, "PercentageOfBinaryFeatures": 0, "Quartile2StdDevOfNumericAtts": 9.403000806548235, "RandomTreeDepth1AUC": 0.7284156410369743, "Dimensionality": 0.5079365079365079, "MaxMutualInformation": 0.33451869143397, "MinNominalAttDistinctValues": 3, "PercentageOfInstancesWithMissingValues": 0, "Quartile3AttributeEntropy": 2.5017568167234927, "RandomTreeDepth1ErrRate": 0.2857142857142857, "EquivalentNumberOfAtts": 7.756241681818194, "MaxNominalAttDistinctValues": 7, "MinSkewnessOfNumericAtts": 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