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    "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": "Allison, T.  and Cicchetti, D.",
    "contributor": null,
    "date": "2014-09-29 00:07:26",
    "update_comment": "set target feature",
    "last_update": "2014-10-06 22:06:38",
    "licence": "Public",
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