{ "data_id": "510", "name": "sleep", "exact_name": "sleep", "version": 2, "version_label": null, "description": "**Author**: \n**Source**: Unknown - Date unknown \n**Please cite**: \n\nThis dataset contains 3 more features compared to version 1 of the same dataset.\n\nData from which conclusions were drawn in the article \"Sleep in\nMammals: Ecological and Constitutional Correlates\" by Allison, T. and\nCicchetti, D. (1976), _Science_, November 12, vol. 194, pp. 732-734.\nIncludes brain and body weight, life span, gestation time, time\nsleeping, and predation and danger indices for 62 mammals.\n\n\n\nVariables below (from left to right) for Mammals Data Set:\n\nspecies of animal\n\nbody weight in kg\n\nbrain weight in g\n\nslow wave (\"nondreaming\") sleep (hrs\/day)\n\nparadoxical (\"dreaming\") sleep (hrs\/day)\n\ntotal sleep (hrs\/day) (sum of slow wave and paradoxical sleep)\n\nmaximum life span (years)\n\ngestation time (days)\n\npredation index (1-5)\n1 = minimum (least likely to be preyed upon)\n5 = maximum (most likely to be preyed upon)\n\nsleep exposure index (1-5)\n1 = least exposed (e.g. animal sleeps in a\nwell-protected den)\n5 = most exposed\n\noverall danger index (1-5)\n(based on the above two indices and other information)\n1 = least danger (from other animals)\n5 = most danger (from other animals)\n\n\n\nFor more details, see\n\nAllison, Truett and Cicchetti, Domenic V. (1976), \"Sleep in Mammals:\nEcological and Constitutional Correlates\", _Science_, November 12,\nvol. 194, pp. 732-734.\n\n\n\nThe above data set can be freely used for non-commercial purposes and\ncan be freely distributed (permission in writing obtained from Dr.\nTruett Allison).\n\nSubmitted by Roger Johnson\nrwjohnso@silver.sdsmt.edu\n\n\n\nInformation about the dataset\nCLASSTYPE: numeric\nCLASSINDEX: none specific", "format": "ARFF", "uploader": "Joaquin Vanschoren", "uploader_id": 2, "visibility": "public", "creator": null, "contributor": null, "date": "2014-09-29 00:07:26", "update_comment": "set target feature", "last_update": "2014-10-06 22:06:38", "licence": "Public", "status": "active", "error_message": null, "url": "https:\/\/www.openml.org\/data\/download\/52622\/sleep.arff", "default_target_attribute": "overall_danger_index", "row_id_attribute": null, "ignore_attribute": "\"species\"", "runs": 0, "suggest": { "input": [ "sleep", "This dataset contains 3 more features compared to version 1 of the same dataset. Data from which conclusions were drawn in the article \"Sleep in Mammals: Ecological and Constitutional Correlates\" by Allison, T. and Cicchetti, D. (1976), _Science_, November 12, vol. 194, pp. 732-734. Includes brain and body weight, life span, gestation time, time sleeping, and predation and danger indices for 62 mammals. 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