1.数据字段解释

affairs：一年来婚外情的频率  
gender：性别  
age：年龄  
yearsmarried：婚龄  
children：是否有小孩  
religiousness：宗教信仰程度（5分制，1分表示反对，5分表示非常信仰） 
education：学历 
occupation：职业（逆向编号的戈登7种分类）  
rating：对婚姻的自我评分（5分制，1表示非常不幸福，5表示非常幸福）

2.数据列表

val dataList: List[(Double, String, Double, Double, String, Double, Double, Double, Double)] = List(

      (0, "male", 37, 10, "no", 3, 18, 7, 4),

      (0, "female", 27, 4, "no", 4, 14, 6, 4),

      (0, "female", 32, 15, "yes", 1, 12, 1, 4),

      (0, "male", 57, 15, "yes", 5, 18, 6, 5),

      (0, "male", 22, 0.75, "no", 2, 17, 6, 3),

      (0, "female", 32, 1.5, "no", 2, 17, 5, 5),

      (0, "female", 22, 0.75, "no", 2, 12, 1, 3),

      (0, "male", 57, 15, "yes", 2, 14, 4, 4),

      (0, "female", 32, 15, "yes", 4, 16, 1, 2),

      (0, "male", 22, 1.5, "no", 4, 14, 4, 5),

      (0, "male", 37, 15, "yes", 2, 20, 7, 2),

      (0, "male", 27, 4, "yes", 4, 18, 6, 4),

      (0, "male", 47, 15, "yes", 5, 17, 6, 4),

      (0, "female", 22, 1.5, "no", 2, 17, 5, 4),

      (0, "female", 27, 4, "no", 4, 14, 5, 4),

      (0, "female", 37, 15, "yes", 1, 17, 5, 5),

      (0, "female", 37, 15, "yes", 2, 18, 4, 3),

      (0, "female", 22, 0.75, "no", 3, 16, 5, 4),

      (0, "female", 22, 1.5, "no", 2, 16, 5, 5),

      (0, "female", 27, 10, "yes", 2, 14, 1, 5),

      (0, "female", 22, 1.5, "no", 2, 16, 5, 5),

      (0, "female", 22, 1.5, "no", 2, 16, 5, 5),

      (0, "female", 27, 10, "yes", 4, 16, 5, 4),

      (0, "female", 32, 10, "yes", 3, 14, 1, 5),

      (0, "male", 37, 4, "yes", 2, 20, 6, 4),

      (0, "female", 22, 1.5, "no", 2, 18, 5, 5),

      (0, "female", 27, 7, "no", 4, 16, 1, 5),

      (0, "male", 42, 15, "yes", 5, 20, 6, 4),

      (0, "male", 27, 4, "yes", 3, 16, 5, 5),

      (0, "female", 27, 4, "yes", 3, 17, 5, 4),

      (0, "male", 42, 15, "yes", 4, 20, 6, 3),

      (0, "female", 22, 1.5, "no", 3, 16, 5, 5),

      (0, "male", 27, 0.417, "no", 4, 17, 6, 4),

      (0, "female", 42, 15, "yes", 5, 14, 5, 4),

      (0, "male", 32, 4, "yes", 1, 18, 6, 4),

      (0, "female", 22, 1.5, "no", 4, 16, 5, 3),

      (0, "female", 42, 15, "yes", 3, 12, 1, 4),

      (0, "female", 22, 4, "no", 4, 17, 5, 5),

      (0, "male", 22, 1.5, "yes", 1, 14, 3, 5),

      (0, "female", 22, 0.75, "no", 3, 16, 1, 5),

      (0, "male", 32, 10, "yes", 5, 20, 6, 5),

      (0, "male", 52, 15, "yes", 5, 18, 6, 3),

      (0, "female", 22, 0.417, "no", 5, 14, 1, 4),

      (0, "female", 27, 4, "yes", 2, 18, 6, 1),

      (0, "female", 32, 7, "yes", 5, 17, 5, 3),

      (0, "male", 22, 4, "no", 3, 16, 5, 5),

      (0, "female", 27, 7, "yes", 4, 18, 6, 5),

      (0, "female", 42, 15, "yes", 2, 18, 5, 4),

      (0, "male", 27, 1.5, "yes", 4, 16, 3, 5),

      (0, "male", 42, 15, "yes", 2, 20, 6, 4),

      (0, "female", 22, 0.75, "no", 5, 14, 3, 5),

      (0, "male", 32, 7, "yes", 2, 20, 6, 4),

      (0, "male", 27, 4, "yes", 5, 20, 6, 5),

      (0, "male", 27, 10, "yes", 4, 20, 6, 4),

      (0, "male", 22, 4, "no", 1, 18, 5, 5),

      (0, "female", 37, 15, "yes", 4, 14, 3, 1),

      (0, "male", 22, 1.5, "yes", 5, 16, 4, 4),

      (0, "female", 37, 15, "yes", 4, 17, 1, 5),

      (0, "female", 27, 0.75, "no", 4, 17, 5, 4),

      (0, "male", 32, 10, "yes", 4, 20, 6, 4),

      (0, "female", 47, 15, "yes", 5, 14, 7, 2),

      (0, "male", 37, 10, "yes", 3, 20, 6, 4),

      (0, "female", 22, 0.75, "no", 2, 16, 5, 5),

      (0, "male", 27, 4, "no", 2, 18, 4, 5),

      (0, "male", 32, 7, "no", 4, 20, 6, 4),

      (0, "male", 42, 15, "yes", 2, 17, 3, 5),

      (0, "male", 37, 10, "yes", 4, 20, 6, 4),

      (0, "female", 47, 15, "yes", 3, 17, 6, 5),

      (0, "female", 22, 1.5, "no", 5, 16, 5, 5),

      (0, "female", 27, 1.5, "no", 2, 16, 6, 4),

      (0, "female", 27, 4, "no", 3, 17, 5, 5),

      (0, "female", 32, 10, "yes", 5, 14, 4, 5),

      (0, "female", 22, 0.125, "no", 2, 12, 5, 5),

      (0, "male", 47, 15, "yes", 4, 14, 4, 3),

      (0, "male", 32, 15, "yes", 1, 14, 5, 5),

      (0, "male", 27, 7, "yes", 4, 16, 5, 5),

      (0, "female", 22, 1.5, "yes", 3, 16, 5, 5),

      (0, "male", 27, 4, "yes", 3, 17, 6, 5),

      (0, "female", 22, 1.5, "no", 3, 16, 5, 5),

      (0, "male", 57, 15, "yes", 2, 14, 7, 2),

      (0, "male", 17.5, 1.5, "yes", 3, 18, 6, 5),

      (0, "male", 57, 15, "yes", 4, 20, 6, 5),

      (0, "female", 22, 0.75, "no", 2, 16, 3, 4),

      (0, "male", 42, 4, "no", 4, 17, 3, 3),

      (0, "female", 22, 1.5, "yes", 4, 12, 1, 5),

      (0, "female", 22, 0.417, "no", 1, 17, 6, 4),

      (0, "female", 32, 15, "yes", 4, 17, 5, 5),

      (0, "female", 27, 1.5, "no", 3, 18, 5, 2),

      (0, "female", 22, 1.5, "yes", 3, 14, 1, 5),

      (0, "female", 37, 15, "yes", 3, 14, 1, 4),

      (0, "female", 32, 15, "yes", 4, 14, 3, 4),

      (0, "male", 37, 10, "yes", 2, 14, 5, 3),

      (0, "male", 37, 10, "yes", 4, 16, 5, 4),

      (0, "male", 57, 15, "yes", 5, 20, 5, 3),

      (0, "male", 27, 0.417, "no", 1, 16, 3, 4),

      (0, "female", 42, 15, "yes", 5, 14, 1, 5),

      (0, "male", 57, 15, "yes", 3, 16, 6, 1),

      (0, "male", 37, 10, "yes", 1, 16, 6, 4),

      (0, "male", 37, 15, "yes", 3, 17, 5, 5),

      (0, "male", 37, 15, "yes", 4, 20, 6, 5),

      (0, "female", 27, 10, "yes", 5, 14, 1, 5),

      (0, "male", 37, 10, "yes", 2, 18, 6, 4),

      (0, "female", 22, 0.125, "no", 4, 12, 4, 5),

      (0, "male", 57, 15, "yes", 5, 20, 6, 5),

      (0, "female", 37, 15, "yes", 4, 18, 6, 4),

      (0, "male", 22, 4, "yes", 4, 14, 6, 4),

      (0, "male", 27, 7, "yes", 4, 18, 5, 4),

      (0, "male", 57, 15, "yes", 4, 20, 5, 4),

      (0, "male", 32, 15, "yes", 3, 14, 6, 3),

      (0, "female", 22, 1.5, "no", 2, 14, 5, 4),

      (0, "female", 32, 7, "yes", 4, 17, 1, 5),

      (0, "female", 37, 15, "yes", 4, 17, 6, 5),

      (0, "female", 32, 1.5, "no", 5, 18, 5, 5),

      (0, "male", 42, 10, "yes", 5, 20, 7, 4),

      (0, "female", 27, 7, "no", 3, 16, 5, 4),

      (0, "male", 37, 15, "no", 4, 20, 6, 5),

      (0, "male", 37, 15, "yes", 4, 14, 3, 2),

      (0, "male", 32, 10, "no", 5, 18, 6, 4),

      (0, "female", 22, 0.75, "no", 4, 16, 1, 5),

      (0, "female", 27, 7, "yes", 4, 12, 2, 4),

      (0, "female", 27, 7, "yes", 2, 16, 2, 5),

      (0, "female", 42, 15, "yes", 5, 18, 5, 4),

      (0, "male", 42, 15, "yes", 4, 17, 5, 3),

      (0, "female", 27, 7, "yes", 2, 16, 1, 2),

      (0, "female", 22, 1.5, "no", 3, 16, 5, 5),

      (0, "male", 37, 15, "yes", 5, 20, 6, 5),

      (0, "female", 22, 0.125, "no", 2, 14, 4, 5),

      (0, "male", 27, 1.5, "no", 4, 16, 5, 5),

      (0, "male", 32, 1.5, "no", 2, 18, 6, 5),

      (0, "male", 27, 1.5, "no", 2, 17, 6, 5),

      (0, "female", 27, 10, "yes", 4, 16, 1, 3),

      (0, "male", 42, 15, "yes", 4, 18, 6, 5),

      (0, "female", 27, 1.5, "no", 2, 16, 6, 5),

      (0, "male", 27, 4, "no", 2, 18, 6, 3),

      (0, "female", 32, 10, "yes", 3, 14, 5, 3),

      (0, "female", 32, 15, "yes", 3, 18, 5, 4),

      (0, "female", 22, 0.75, "no", 2, 18, 6, 5),

      (0, "female", 37, 15, "yes", 2, 16, 1, 4),

      (0, "male", 27, 4, "yes", 4, 20, 5, 5),

      (0, "male", 27, 4, "no", 1, 20, 5, 4),

      (0, "female", 27, 10, "yes", 2, 12, 1, 4),

      (0, "female", 32, 15, "yes", 5, 18, 6, 4),

      (0, "male", 27, 7, "yes", 5, 12, 5, 3),

      (0, "male", 52, 15, "yes", 2, 18, 5, 4),

      (0, "male", 27, 4, "no", 3, 20, 6, 3),

      (0, "male", 37, 4, "yes", 1, 18, 5, 4),

      (0, "male", 27, 4, "yes", 4, 14, 5, 4),

      (0, "female", 52, 15, "yes", 5, 12, 1, 3),

      (0, "female", 57, 15, "yes", 4, 16, 6, 4),

      (0, "male", 27, 7, "yes", 1, 16, 5, 4),

      (0, "male", 37, 7, "yes", 4, 20, 6, 3),

      (0, "male", 22, 0.75, "no", 2, 14, 4, 3),

      (0, "male", 32, 4, "yes", 2, 18, 5, 3),

      (0, "male", 37, 15, "yes", 4, 20, 6, 3),

      (0, "male", 22, 0.75, "yes", 2, 14, 4, 3),

      (0, "male", 42, 15, "yes", 4, 20, 6, 3),

      (0, "female", 52, 15, "yes", 5, 17, 1, 1),

      (0, "female", 37, 15, "yes", 4, 14, 1, 2),

      (0, "male", 27, 7, "yes", 4, 14, 5, 3),

      (0, "male", 32, 4, "yes", 2, 16, 5, 5),

      (0, "female", 27, 4, "yes", 2, 18, 6, 5),

      (0, "female", 27, 4, "yes", 2, 18, 5, 5),

      (0, "male", 37, 15, "yes", 5, 18, 6, 5),

      (0, "female", 47, 15, "yes", 5, 12, 5, 4),

      (0, "female", 32, 10, "yes", 3, 17, 1, 4),

      (0, "female", 27, 1.5, "yes", 4, 17, 1, 2),

      (0, "female", 57, 15, "yes", 2, 18, 5, 2),

      (0, "female", 22, 1.5, "no", 4, 14, 5, 4),

      (0, "male", 42, 15, "yes", 3, 14, 3, 4),

      (0, "male", 57, 15, "yes", 4, 9, 2, 2),

      (0, "male", 57, 15, "yes", 4, 20, 6, 5),

      (0, "female", 22, 0.125, "no", 4, 14, 4, 5),

      (0, "female", 32, 10, "yes", 4, 14, 1, 5),

      (0, "female", 42, 15, "yes", 3, 18, 5, 4),

      (0, "female", 27, 1.5, "no", 2, 18, 6, 5),

      (0, "male", 32, 0.125, "yes", 2, 18, 5, 2),

      (0, "female", 27, 4, "no", 3, 16, 5, 4),

      (0, "female", 27, 10, "yes", 2, 16, 1, 4),

      (0, "female", 32, 7, "yes", 4, 16, 1, 3),

      (0, "female", 37, 15, "yes", 4, 14, 5, 4),

      (0, "female", 42, 15, "yes", 5, 17, 6, 2),

      (0, "male", 32, 1.5, "yes", 4, 14, 6, 5),

      (0, "female", 32, 4, "yes", 3, 17, 5, 3),

      (0, "female", 37, 7, "no", 4, 18, 5, 5),

      (0, "female", 22, 0.417, "yes", 3, 14, 3, 5),

      (0, "female", 27, 7, "yes", 4, 14, 1, 5),

      (0, "male", 27, 0.75, "no", 3, 16, 5, 5),

      (0, "male", 27, 4, "yes", 2, 20, 5, 5),

      (0, "male", 32, 10, "yes", 4, 16, 4, 5),

      (0, "male", 32, 15, "yes", 1, 14, 5, 5),

      (0, "male", 22, 0.75, "no", 3, 17, 4, 5),

      (0, "female", 27, 7, "yes", 4, 17, 1, 4),

      (0, "male", 27, 0.417, "yes", 4, 20, 5, 4),

      (0, "male", 37, 15, "yes", 4, 20, 5, 4),

      (0, "female", 37, 15, "yes", 2, 14, 1, 3),

      (0, "male", 22, 4, "yes", 1, 18, 5, 4),

      (0, "male", 37, 15, "yes", 4, 17, 5, 3),

      (0, "female", 22, 1.5, "no", 2, 14, 4, 5),

      (0, "male", 52, 15, "yes", 4, 14, 6, 2),

      (0, "female", 22, 1.5, "no", 4, 17, 5, 5),

      (0, "male", 32, 4, "yes", 5, 14, 3, 5),

      (0, "male", 32, 4, "yes", 2, 14, 3, 5),

      (0, "female", 22, 1.5, "no", 3, 16, 6, 5),

      (0, "male", 27, 0.75, "no", 2, 18, 3, 3),

      (0, "female", 22, 7, "yes", 2, 14, 5, 2),

      (0, "female", 27, 0.75, "no", 2, 17, 5, 3),

      (0, "female", 37, 15, "yes", 4, 12, 1, 2),

      (0, "female", 22, 1.5, "no", 1, 14, 1, 5),

      (0, "female", 37, 10, "no", 2, 12, 4, 4),

      (0, "female", 37, 15, "yes", 4, 18, 5, 3),

      (0, "female", 42, 15, "yes", 3, 12, 3, 3),

      (0, "male", 22, 4, "no", 2, 18, 5, 5),

      (0, "male", 52, 7, "yes", 2, 20, 6, 2),

      (0, "male", 27, 0.75, "no", 2, 17, 5, 5),

      (0, "female", 27, 4, "no", 2, 17, 4, 5),

      (0, "male", 42, 1.5, "no", 5, 20, 6, 5),

      (0, "male", 22, 1.5, "no", 4, 17, 6, 5),

      (0, "male", 22, 4, "no", 4, 17, 5, 3),

      (0, "female", 22, 4, "yes", 1, 14, 5, 4),

      (0, "male", 37, 15, "yes", 5, 20, 4, 5),

      (0, "female", 37, 10, "yes", 3, 16, 6, 3),

      (0, "male", 42, 15, "yes", 4, 17, 6, 5),

      (0, "female", 47, 15, "yes", 4, 17, 5, 5),

      (0, "male", 22, 1.5, "no", 4, 16, 5, 4),

      (0, "female", 32, 10, "yes", 3, 12, 1, 4),

      (0, "female", 22, 7, "yes", 1, 14, 3, 5),

      (0, "female", 32, 10, "yes", 4, 17, 5, 4),

      (0, "male", 27, 1.5, "yes", 2, 16, 2, 4),

      (0, "male", 37, 15, "yes", 4, 14, 5, 5),

      (0, "male", 42, 4, "yes", 3, 14, 4, 5),

      (0, "female", 37, 15, "yes", 5, 14, 5, 4),

      (0, "female", 32, 7, "yes", 4, 17, 5, 5),

      (0, "female", 42, 15, "yes", 4, 18, 6, 5),

      (0, "male", 27, 4, "no", 4, 18, 6, 4),

      (0, "male", 22, 0.75, "no", 4, 18, 6, 5),

      (0, "male", 27, 4, "yes", 4, 14, 5, 3),

      (0, "female", 22, 0.75, "no", 5, 18, 1, 5),

      (0, "female", 52, 15, "yes", 5, 9, 5, 5),

      (0, "male", 32, 10, "yes", 3, 14, 5, 5),

      (0, "female", 37, 15, "yes", 4, 16, 4, 4),

      (0, "male", 32, 7, "yes", 2, 20, 5, 4),

      (0, "female", 42, 15, "yes", 3, 18, 1, 4),

      (0, "male", 32, 15, "yes", 1, 16, 5, 5),

      (0, "male", 27, 4, "yes", 3, 18, 5, 5),

      (0, "female", 32, 15, "yes", 4, 12, 3, 4),

      (0, "male", 22, 0.75, "yes", 3, 14, 2, 4),

      (0, "female", 22, 1.5, "no", 3, 16, 5, 3),

      (0, "female", 42, 15, "yes", 4, 14, 3, 5),

      (0, "female", 52, 15, "yes", 3, 16, 5, 4),

      (0, "male", 37, 15, "yes", 5, 20, 6, 4),

      (0, "female", 47, 15, "yes", 4, 12, 2, 3),

      (0, "male", 57, 15, "yes", 2, 20, 6, 4),

      (0, "male", 32, 7, "yes", 4, 17, 5, 5),

      (0, "female", 27, 7, "yes", 4, 17, 1, 4),

      (0, "male", 22, 1.5, "no", 1, 18, 6, 5),

      (0, "female", 22, 4, "yes", 3, 9, 1, 4),

      (0, "female", 22, 1.5, "no", 2, 14, 1, 5),

      (0, "male", 42, 15, "yes", 2, 20, 6, 4),

      (0, "male", 57, 15, "yes", 4, 9, 2, 4),

      (0, "female", 27, 7, "yes", 2, 18, 1, 5),

      (0, "female", 22, 4, "yes", 3, 14, 1, 5),

      (0, "male", 37, 15, "yes", 4, 14, 5, 3),

      (0, "male", 32, 7, "yes", 1, 18, 6, 4),

      (0, "female", 22, 1.5, "no", 2, 14, 5, 5),

      (0, "female", 22, 1.5, "yes", 3, 12, 1, 3),

      (0, "male", 52, 15, "yes", 2, 14, 5, 5),

      (0, "female", 37, 15, "yes", 2, 14, 1, 1),

      (0, "female", 32, 10, "yes", 2, 14, 5, 5),

      (0, "male", 42, 15, "yes", 4, 20, 4, 5),

      (0, "female", 27, 4, "yes", 3, 18, 4, 5),

      (0, "male", 37, 15, "yes", 4, 20, 6, 5),

      (0, "male", 27, 1.5, "no", 3, 18, 5, 5),

      (0, "female", 22, 0.125, "no", 2, 16, 6, 3),

      (0, "male", 32, 10, "yes", 2, 20, 6, 3),

      (0, "female", 27, 4, "no", 4, 18, 5, 4),

      (0, "female", 27, 7, "yes", 2, 12, 5, 1),

      (0, "male", 32, 4, "yes", 5, 18, 6, 3),

      (0, "female", 37, 15, "yes", 2, 17, 5, 5),

      (0, "male", 47, 15, "no", 4, 20, 6, 4),

      (0, "male", 27, 1.5, "no", 1, 18, 5, 5),

      (0, "male", 37, 15, "yes", 4, 20, 6, 4),

      (0, "female", 32, 15, "yes", 4, 18, 1, 4),

      (0, "female", 32, 7, "yes", 4, 17, 5, 4),

      (0, "female", 42, 15, "yes", 3, 14, 1, 3),

      (0, "female", 27, 7, "yes", 3, 16, 1, 4),

      (0, "male", 27, 1.5, "no", 3, 16, 4, 2),

      (0, "male", 22, 1.5, "no", 3, 16, 3, 5),

      (0, "male", 27, 4, "yes", 3, 16, 4, 2),

      (0, "female", 27, 7, "yes", 3, 12, 1, 2),

      (0, "female", 37, 15, "yes", 2, 18, 5, 4),

      (0, "female", 37, 7, "yes", 3, 14, 4, 4),

      (0, "male", 22, 1.5, "no", 2, 16, 5, 5),

      (0, "male", 37, 15, "yes", 5, 20, 5, 4),

      (0, "female", 22, 1.5, "no", 4, 16, 5, 3),

      (0, "female", 32, 10, "yes", 4, 16, 1, 5),

      (0, "male", 27, 4, "no", 2, 17, 5, 3),

      (0, "female", 22, 0.417, "no", 4, 14, 5, 5),

      (0, "female", 27, 4, "no", 2, 18, 5, 5),

      (0, "male", 37, 15, "yes", 4, 18, 5, 3),

      (0, "male", 37, 10, "yes", 5, 20, 7, 4),

      (0, "female", 27, 7, "yes", 2, 14, 4, 2),

      (0, "male", 32, 4, "yes", 2, 16, 5, 5),

      (0, "male", 32, 4, "yes", 2, 16, 6, 4),

      (0, "male", 22, 1.5, "no", 3, 18, 4, 5),

      (0, "female", 22, 4, "yes", 4, 14, 3, 4),

      (0, "female", 17.5, 0.75, "no", 2, 18, 5, 4),

      (0, "male", 32, 10, "yes", 4, 20, 4, 5),

      (0, "female", 32, 0.75, "no", 5, 14, 3, 3),

      (0, "male", 37, 15, "yes", 4, 17, 5, 3),

      (0, "male", 32, 4, "no", 3, 14, 4, 5),

      (0, "female", 27, 1.5, "no", 2, 17, 3, 2),

      (0, "female", 22, 7, "yes", 4, 14, 1, 5),

      (0, "male", 47, 15, "yes", 5, 14, 6, 5),

      (0, "male", 27, 4, "yes", 1, 16, 4, 4),

      (0, "female", 37, 15, "yes", 5, 14, 1, 3),

      (0, "male", 42, 4, "yes", 4, 18, 5, 5),

      (0, "female", 32, 4, "yes", 2, 14, 1, 5),

      (0, "male", 52, 15, "yes", 2, 14, 7, 4),

      (0, "female", 22, 1.5, "no", 2, 16, 1, 4),

      (0, "male", 52, 15, "yes", 4, 12, 2, 4),

      (0, "female", 22, 0.417, "no", 3, 17, 1, 5),

      (0, "female", 22, 1.5, "no", 2, 16, 5, 5),

      (0, "male", 27, 4, "yes", 4, 20, 6, 4),

      (0, "female", 32, 15, "yes", 4, 14, 1, 5),

      (0, "female", 27, 1.5, "no", 2, 16, 3, 5),

      (0, "male", 32, 4, "no", 1, 20, 6, 5),

      (0, "male", 37, 15, "yes", 3, 20, 6, 4),

      (0, "female", 32, 10, "no", 2, 16, 6, 5),

      (0, "female", 32, 10, "yes", 5, 14, 5, 5),

      (0, "male", 37, 1.5, "yes", 4, 18, 5, 3),

      (0, "male", 32, 1.5, "no", 2, 18, 4, 4),

      (0, "female", 32, 10, "yes", 4, 14, 1, 4),

      (0, "female", 47, 15, "yes", 4, 18, 5, 4),

      (0, "female", 27, 10, "yes", 5, 12, 1, 5),

      (0, "male", 27, 4, "yes", 3, 16, 4, 5),

      (0, "female", 37, 15, "yes", 4, 12, 4, 2),

      (0, "female", 27, 0.75, "no", 4, 16, 5, 5),

      (0, "female", 37, 15, "yes", 4, 16, 1, 5),

      (0, "female", 32, 15, "yes", 3, 16, 1, 5),

      (0, "female", 27, 10, "yes", 2, 16, 1, 5),

      (0, "male", 27, 7, "no", 2, 20, 6, 5),

      (0, "female", 37, 15, "yes", 2, 14, 1, 3),

      (0, "male", 27, 1.5, "yes", 2, 17, 4, 4),

      (0, "female", 22, 0.75, "yes", 2, 14, 1, 5),

      (0, "male", 22, 4, "yes", 4, 14, 2, 4),

      (0, "male", 42, 0.125, "no", 4, 17, 6, 4),

      (0, "male", 27, 1.5, "yes", 4, 18, 6, 5),

      (0, "male", 27, 7, "yes", 3, 16, 6, 3),

      (0, "female", 52, 15, "yes", 4, 14, 1, 3),

      (0, "male", 27, 1.5, "no", 5, 20, 5, 2),

      (0, "female", 27, 1.5, "no", 2, 16, 5, 5),

      (0, "female", 27, 1.5, "no", 3, 17, 5, 5),

      (0, "male", 22, 0.125, "no", 5, 16, 4, 4),

      (0, "female", 27, 4, "yes", 4, 16, 1, 5),

      (0, "female", 27, 4, "yes", 4, 12, 1, 5),

      (0, "female", 47, 15, "yes", 2, 14, 5, 5),

      (0, "female", 32, 15, "yes", 3, 14, 5, 3),

      (0, "male", 42, 7, "yes", 2, 16, 5, 5),

      (0, "male", 22, 0.75, "no", 4, 16, 6, 4),

      (0, "male", 27, 0.125, "no", 3, 20, 6, 5),

      (0, "male", 32, 10, "yes", 3, 20, 6, 5),

      (0, "female", 22, 0.417, "no", 5, 14, 4, 5),

      (0, "female", 47, 15, "yes", 5, 14, 1, 4),

      (0, "female", 32, 10, "yes", 3, 14, 1, 5),

      (0, "male", 57, 15, "yes", 4, 17, 5, 5),

      (0, "male", 27, 4, "yes", 3, 20, 6, 5),

      (0, "female", 32, 7, "yes", 4, 17, 1, 5),

      (0, "female", 37, 10, "yes", 4, 16, 1, 5),

      (0, "female", 32, 10, "yes", 1, 18, 1, 4),

      (0, "female", 22, 4, "no", 3, 14, 1, 4),

      (0, "female", 27, 7, "yes", 4, 14, 3, 2),

      (0, "male", 57, 15, "yes", 5, 18, 5, 2),

      (0, "male", 32, 7, "yes", 2, 18, 5, 5),

      (0, "female", 27, 1.5, "no", 4, 17, 1, 3),

      (0, "male", 22, 1.5, "no", 4, 14, 5, 5),

      (0, "female", 22, 1.5, "yes", 4, 14, 5, 4),

      (0, "female", 32, 7, "yes", 3, 16, 1, 5),

      (0, "female", 47, 15, "yes", 3, 16, 5, 4),

      (0, "female", 22, 0.75, "no", 3, 16, 1, 5),

      (0, "female", 22, 1.5, "yes", 2, 14, 5, 5),

      (0, "female", 27, 4, "yes", 1, 16, 5, 5),

      (0, "male", 52, 15, "yes", 4, 16, 5, 5),

      (0, "male", 32, 10, "yes", 4, 20, 6, 5),

      (0, "male", 47, 15, "yes", 4, 16, 6, 4),

      (0, "female", 27, 7, "yes", 2, 14, 1, 2),

      (0, "female", 22, 1.5, "no", 4, 14, 4, 5),

      (0, "female", 32, 10, "yes", 2, 16, 5, 4),

      (0, "female", 22, 0.75, "no", 2, 16, 5, 4),

      (0, "female", 22, 1.5, "no", 2, 16, 5, 5),

      (0, "female", 42, 15, "yes", 3, 18, 6, 4),

      (0, "female", 27, 7, "yes", 5, 14, 4, 5),

      (0, "male", 42, 15, "yes", 4, 16, 4, 4),

      (0, "female", 57, 15, "yes", 3, 18, 5, 2),

      (0, "male", 42, 15, "yes", 3, 18, 6, 2),

      (0, "female", 32, 7, "yes", 2, 14, 1, 2),

      (0, "male", 22, 4, "no", 5, 12, 4, 5),

      (0, "female", 22, 1.5, "no", 1, 16, 6, 5),

      (0, "female", 22, 0.75, "no", 1, 14, 4, 5),

      (0, "female", 32, 15, "yes", 4, 12, 1, 5),

      (0, "male", 22, 1.5, "no", 2, 18, 5, 3),

      (0, "male", 27, 4, "yes", 5, 17, 2, 5),

      (0, "female", 27, 4, "yes", 4, 12, 1, 5),

      (0, "male", 42, 15, "yes", 5, 18, 5, 4),

      (0, "male", 32, 1.5, "no", 2, 20, 7, 3),

      (0, "male", 57, 15, "no", 4, 9, 3, 1),

      (0, "male", 37, 7, "no", 4, 18, 5, 5),

      (0, "male", 52, 15, "yes", 2, 17, 5, 4),

      (0, "male", 47, 15, "yes", 4, 17, 6, 5),

      (0, "female", 27, 7, "no", 2, 17, 5, 4),

      (0, "female", 27, 7, "yes", 4, 14, 5, 5),

      (0, "female", 22, 4, "no", 2, 14, 3, 3),

      (0, "male", 37, 7, "yes", 2, 20, 6, 5),

      (0, "male", 27, 7, "no", 4, 12, 4, 3),

      (0, "male", 42, 10, "yes", 4, 18, 6, 4),

      (0, "female", 22, 1.5, "no", 3, 14, 1, 5),

      (0, "female", 22, 4, "yes", 2, 14, 1, 3),

      (0, "female", 57, 15, "no", 4, 20, 6, 5),

      (0, "male", 37, 15, "yes", 4, 14, 4, 3),

      (0, "female", 27, 7, "yes", 3, 18, 5, 5),

      (0, "female", 17.5, 10, "no", 4, 14, 4, 5),

      (0, "male", 22, 4, "yes", 4, 16, 5, 5),

      (0, "female", 27, 4, "yes", 2, 16, 1, 4),

      (0, "female", 37, 15, "yes", 2, 14, 5, 1),

      (0, "female", 22, 1.5, "no", 5, 14, 1, 4),

      (0, "male", 27, 7, "yes", 2, 20, 5, 4),

      (0, "male", 27, 4, "yes", 4, 14, 5, 5),

      (0, "male", 22, 0.125, "no", 1, 16, 3, 5),

      (0, "female", 27, 7, "yes", 4, 14, 1, 4),

      (0, "female", 32, 15, "yes", 5, 16, 5, 3),

      (0, "male", 32, 10, "yes", 4, 18, 5, 4),

      (0, "female", 32, 15, "yes", 2, 14, 3, 4),

      (0, "female", 22, 1.5, "no", 3, 17, 5, 5),

      (0, "male", 27, 4, "yes", 4, 17, 4, 4),

      (0, "female", 52, 15, "yes", 5, 14, 1, 5),

      (0, "female", 27, 7, "yes", 2, 12, 1, 2),

      (0, "female", 27, 7, "yes", 3, 12, 1, 4),

      (0, "female", 42, 15, "yes", 2, 14, 1, 4),

      (0, "female", 42, 15, "yes", 4, 14, 5, 4),

      (0, "male", 27, 7, "yes", 4, 14, 3, 3),

      (0, "male", 27, 7, "yes", 2, 20, 6, 2),

      (0, "female", 42, 15, "yes", 3, 12, 3, 3),

      (0, "male", 27, 4, "yes", 3, 16, 3, 5),

      (0, "female", 27, 7, "yes", 3, 14, 1, 4),

      (0, "female", 22, 1.5, "no", 2, 14, 4, 5),

      (0, "female", 27, 4, "yes", 4, 14, 1, 4),

      (0, "female", 22, 4, "no", 4, 14, 5, 5),

      (0, "female", 22, 1.5, "no", 2, 16, 4, 5),

      (0, "male", 47, 15, "no", 4, 14, 5, 4),

      (0, "male", 37, 10, "yes", 2, 18, 6, 2),

      (0, "male", 37, 15, "yes", 3, 17, 5, 4),

      (0, "female", 27, 4, "yes", 2, 16, 1, 4),

      (3, "male", 27, 1.5, "no", 3, 18, 4, 4),

      (3, "female", 27, 4, "yes", 3, 17, 1, 5),

      (7, "male", 37, 15, "yes", 5, 18, 6, 2),

      (12, "female", 32, 10, "yes", 3, 17, 5, 2),

      (1, "male", 22, 0.125, "no", 4, 16, 5, 5),

      (1, "female", 22, 1.5, "yes", 2, 14, 1, 5),

      (12, "male", 37, 15, "yes", 4, 14, 5, 2),

      (7, "female", 22, 1.5, "no", 2, 14, 3, 4),

      (2, "male", 37, 15, "yes", 2, 18, 6, 4),

      (3, "female", 32, 15, "yes", 4, 12, 3, 2),

      (1, "female", 37, 15, "yes", 4, 14, 4, 2),

      (7, "female", 42, 15, "yes", 3, 17, 1, 4),

      (12, "female", 42, 15, "yes", 5, 9, 4, 1),

      (12, "male", 37, 10, "yes", 2, 20, 6, 2),

      (12, "female", 32, 15, "yes", 3, 14, 1, 2),

      (3, "male", 27, 4, "no", 1, 18, 6, 5),

      (7, "male", 37, 10, "yes", 2, 18, 7, 3),

      (7, "female", 27, 4, "no", 3, 17, 5, 5),

      (1, "male", 42, 15, "yes", 4, 16, 5, 5),

      (1, "female", 47, 15, "yes", 5, 14, 4, 5),

      (7, "female", 27, 4, "yes", 3, 18, 5, 4),

      (1, "female", 27, 7, "yes", 5, 14, 1, 4),

      (12, "male", 27, 1.5, "yes", 3, 17, 5, 4),

      (12, "female", 27, 7, "yes", 4, 14, 6, 2),

      (3, "female", 42, 15, "yes", 4, 16, 5, 4),

      (7, "female", 27, 10, "yes", 4, 12, 7, 3),

      (1, "male", 27, 1.5, "no", 2, 18, 5, 2),

      (1, "male", 32, 4, "no", 4, 20, 6, 4),

      (1, "female", 27, 7, "yes", 3, 14, 1, 3),

      (3, "female", 32, 10, "yes", 4, 14, 1, 4),

      (3, "male", 27, 4, "yes", 2, 18, 7, 2),

      (1, "female", 17.5, 0.75, "no", 5, 14, 4, 5),

      (1, "female", 32, 10, "yes", 4, 18, 1, 5),

      (7, "female", 32, 7, "yes", 2, 17, 6, 4),

      (7, "male", 37, 15, "yes", 2, 20, 6, 4),

      (7, "female", 37, 10, "no", 1, 20, 5, 3),

      (12, "female", 32, 10, "yes", 2, 16, 5, 5),

      (7, "male", 52, 15, "yes", 2, 20, 6, 4),

      (7, "female", 42, 15, "yes", 1, 12, 1, 3),

      (1, "male", 52, 15, "yes", 2, 20, 6, 3),

      (2, "male", 37, 15, "yes", 3, 18, 6, 5),

      (12, "female", 22, 4, "no", 3, 12, 3, 4),

      (12, "male", 27, 7, "yes", 1, 18, 6, 2),

      (1, "male", 27, 4, "yes", 3, 18, 5, 5),

      (12, "male", 47, 15, "yes", 4, 17, 6, 5),

      (12, "female", 42, 15, "yes", 4, 12, 1, 1),

      (7, "male", 27, 4, "no", 3, 14, 3, 4),

      (7, "female", 32, 7, "yes", 4, 18, 4, 5),

      (1, "male", 32, 0.417, "yes", 3, 12, 3, 4),

      (3, "male", 47, 15, "yes", 5, 16, 5, 4),

      (12, "male", 37, 15, "yes", 2, 20, 5, 4),

      (7, "male", 22, 4, "yes", 2, 17, 6, 4),

      (1, "male", 27, 4, "no", 2, 14, 4, 5),

      (7, "female", 52, 15, "yes", 5, 16, 1, 3),

      (1, "male", 27, 4, "no", 3, 14, 3, 3),

      (1, "female", 27, 10, "yes", 4, 16, 1, 4),

      (1, "male", 32, 7, "yes", 3, 14, 7, 4),

      (7, "male", 32, 7, "yes", 2, 18, 4, 1),

      (3, "male", 22, 1.5, "no", 1, 14, 3, 2),

      (7, "male", 22, 4, "yes", 3, 18, 6, 4),

      (7, "male", 42, 15, "yes", 4, 20, 6, 4),

      (2, "female", 57, 15, "yes", 1, 18, 5, 4),

      (7, "female", 32, 4, "yes", 3, 18, 5, 2),

      (1, "male", 27, 4, "yes", 1, 16, 4, 4),

      (7, "male", 32, 7, "yes", 4, 16, 1, 4),

      (2, "male", 57, 15, "yes", 1, 17, 4, 4),

      (7, "female", 42, 15, "yes", 4, 14, 5, 2),

      (7, "male", 37, 10, "yes", 1, 18, 5, 3),

      (3, "male", 42, 15, "yes", 3, 17, 6, 1),

      (1, "female", 52, 15, "yes", 3, 14, 4, 4),

      (2, "female", 27, 7, "yes", 3, 17, 5, 3),

      (12, "male", 32, 7, "yes", 2, 12, 4, 2),

      (1, "male", 22, 4, "no", 4, 14, 2, 5),

      (3, "male", 27, 7, "yes", 3, 18, 6, 4),

      (12, "female", 37, 15, "yes", 1, 18, 5, 5),

      (7, "female", 32, 15, "yes", 3, 17, 1, 3),

      (7, "female", 27, 7, "no", 2, 17, 5, 5),

      (1, "female", 32, 7, "yes", 3, 17, 5, 3),

      (1, "male", 32, 1.5, "yes", 2, 14, 2, 4),

      (12, "female", 42, 15, "yes", 4, 14, 1, 2),

      (7, "male", 32, 10, "yes", 3, 14, 5, 4),

      (7, "male", 37, 4, "yes", 1, 20, 6, 3),

      (1, "female", 27, 4, "yes", 2, 16, 5, 3),

      (12, "female", 42, 15, "yes", 3, 14, 4, 3),

      (1, "male", 27, 10, "yes", 5, 20, 6, 5),

      (12, "male", 37, 10, "yes", 2, 20, 6, 2),

      (12, "female", 27, 7, "yes", 1, 14, 3, 3),

      (3, "female", 27, 7, "yes", 4, 12, 1, 2),

      (3, "male", 32, 10, "yes", 2, 14, 4, 4),

      (12, "female", 17.5, 0.75, "yes", 2, 12, 1, 3),

      (12, "female", 32, 15, "yes", 3, 18, 5, 4),

      (2, "female", 22, 7, "no", 4, 14, 4, 3),

      (1, "male", 32, 7, "yes", 4, 20, 6, 5),

      (7, "male", 27, 4, "yes", 2, 18, 6, 2),

      (1, "female", 22, 1.5, "yes", 5, 14, 5, 3),

      (12, "female", 32, 15, "no", 3, 17, 5, 1),

      (12, "female", 42, 15, "yes", 2, 12, 1, 2),

      (7, "male", 42, 15, "yes", 3, 20, 5, 4),

      (12, "male", 32, 10, "no", 2, 18, 4, 2),

      (12, "female", 32, 15, "yes", 3, 9, 1, 1),

      (7, "male", 57, 15, "yes", 5, 20, 4, 5),

      (12, "male", 47, 15, "yes", 4, 20, 6, 4),

      (2, "female", 42, 15, "yes", 2, 17, 6, 3),

      (12, "male", 37, 15, "yes", 3, 17, 6, 3),

      (12, "male", 37, 15, "yes", 5, 17, 5, 2),

      (7, "male", 27, 10, "yes", 2, 20, 6, 4),

      (2, "male", 37, 15, "yes", 2, 16, 5, 4),

      (12, "female", 32, 15, "yes", 1, 14, 5, 2),

      (7, "male", 32, 10, "yes", 3, 17, 6, 3),

      (2, "male", 37, 15, "yes", 4, 18, 5, 1),

      (7, "female", 27, 1.5, "no", 2, 17, 5, 5),

      (3, "female", 47, 15, "yes", 2, 17, 5, 2),

      (12, "male", 37, 15, "yes", 2, 17, 5, 4),

      (12, "female", 27, 4, "no", 2, 14, 5, 5),

      (2, "female", 27, 10, "yes", 4, 14, 1, 5),

      (1, "female", 22, 4, "yes", 3, 16, 1, 3),

      (12, "male", 52, 7, "no", 4, 16, 5, 5),

      (2, "female", 27, 4, "yes", 1, 16, 3, 5),

      (7, "female", 37, 15, "yes", 2, 17, 6, 4),

      (2, "female", 27, 4, "no", 1, 17, 3, 1),

      (12, "female", 17.5, 0.75, "yes", 2, 12, 3, 5),

      (7, "female", 32, 15, "yes", 5, 18, 5, 4),

      (7, "female", 22, 4, "no", 1, 16, 3, 5),

      (2, "male", 32, 4, "yes", 4, 18, 6, 4),

      (1, "female", 22, 1.5, "yes", 3, 18, 5, 2),

      (3, "female", 42, 15, "yes", 2, 17, 5, 4),

      (1, "male", 32, 7, "yes", 4, 16, 4, 4),

      (12, "male", 37, 15, "no", 3, 14, 6, 2),

      (1, "male", 42, 15, "yes", 3, 16, 6, 3),

      (1, "male", 27, 4, "yes", 1, 18, 5, 4),

      (2, "male", 37, 15, "yes", 4, 20, 7, 3),

      (7, "male", 37, 15, "yes", 3, 20, 6, 4),

      (3, "male", 22, 1.5, "no", 2, 12, 3, 3),

      (3, "male", 32, 4, "yes", 3, 20, 6, 2),

      (2, "male", 32, 15, "yes", 5, 20, 6, 5),

      (12, "female", 52, 15, "yes", 1, 18, 5, 5),

      (12, "male", 47, 15, "no", 1, 18, 6, 5),

      (3, "female", 32, 15, "yes", 4, 16, 4, 4),

      (7, "female", 32, 15, "yes", 3, 14, 3, 2),

      (7, "female", 27, 7, "yes", 4, 16, 1, 2),

      (12, "male", 42, 15, "yes", 3, 18, 6, 2),

      (7, "female", 42, 15, "yes", 2, 14, 3, 2),

      (12, "male", 27, 7, "yes", 2, 17, 5, 4),

      (3, "male", 32, 10, "yes", 4, 14, 4, 3),

      (7, "male", 47, 15, "yes", 3, 16, 4, 2),

      (1, "male", 22, 1.5, "yes", 1, 12, 2, 5),

      (7, "female", 32, 10, "yes", 2, 18, 5, 4),

      (2, "male", 32, 10, "yes", 2, 17, 6, 5),

      (2, "male", 22, 7, "yes", 3, 18, 6, 2),

      (1, "female", 32, 15, "yes", 3, 14, 1, 5))

3.定义列名

val colArray: Array[String] = Array("affairs", "gender", "age", "yearsmarried", "children", "religiousness", "education", "occupation", "rating")  

val data = dataList.toDF(colArray:_*)

data.printSchema()

root

 |-- affairs: double (nullable = false)

 |-- gender: string (nullable = true)

 |-- age: double (nullable = false)

 |-- yearsmarried: double (nullable = false)

 |-- children: string (nullable = true)

 |-- religiousness: double (nullable = false)

 |-- education: double (nullable = false)

 |-- occupation: double (nullable = false)

 |-- rating: double (nullable = false)

data.show(10)

+-------+------+----+------------+--------+-------------+---------+----------+------+

|affairs|gender| age|yearsmarried|children|religiousness|education|occupation|rating|

+-------+------+----+------------+--------+-------------+---------+----------+------+

|    0.0|  male|37.0|        10.0|      no|          3.0|     18.0|       7.0|   4.0|

|    0.0|female|27.0|         4.0|      no|          4.0|     14.0|       6.0|   4.0|

|    0.0|female|32.0|        15.0|     yes|          1.0|     12.0|       1.0|   4.0|

|    0.0|  male|57.0|        15.0|     yes|          5.0|     18.0|       6.0|   5.0|

|    0.0|  male|22.0|        0.75|      no|          2.0|     17.0|       6.0|   3.0|

|    0.0|female|32.0|         1.5|      no|          2.0|     17.0|       5.0|   5.0|

|    0.0|female|22.0|        0.75|      no|          2.0|     12.0|       1.0|   3.0|

|    0.0|  male|57.0|        15.0|     yes|          2.0|     14.0|       4.0|   4.0|

|    0.0|female|32.0|        15.0|     yes|          4.0|     16.0|       1.0|   2.0|

|    0.0|  male|22.0|         1.5|      no|          4.0|     14.0|       4.0|   5.0|

+-------+------+----+------------+--------+-------------+---------+----------+------+

only showing top 10 rows

4.查看数据的统计分布情况

val descrDF = data.describe(colArray:_*)

descrDF.printSchema()

root

 |-- summary: string (nullable = true)

 |-- affairs: string (nullable = true)

 |-- gender: string (nullable = true)

 |-- age: string (nullable = true)

 |-- yearsmarried: string (nullable = true)

 |-- children: string (nullable = true)

 |-- religiousness: string (nullable = true)

 |-- education: string (nullable = true)

 |-- occupation: string (nullable = true)

 |-- rating: string (nullable = true)

descrDF.selectExpr("summary",

            "round(affairs,2) as affairs",

            "round(age,2) as age",

            "round(yearsmarried,2) as yearsmarried",

            "children",

            "round(religiousness,2) as religiousness",

            "round(education,2) as education",

            "round(occupation,2) as occupation",

            "round(rating,2) as rating").show(10, truncate = false)

+-------+-------+-----+------------+--------+-------------+---------+----------+------+

|summary|affairs|age  |yearsmarried|children|religiousness|education|occupation|rating|

+-------+-------+-----+------------+--------+-------------+---------+----------+------+

|count  |601.0  |601.0|601.0       |601     |601.0        |601.0    |601.0     |601.0 |

|mean   |1.46   |32.49|8.18        |null    |3.12         |16.17    |4.19      |3.93  |

|stddev |3.3    |9.29 |5.57        |null    |1.17         |2.4      |1.82      |1.1   |

|min    |0.0    |17.5 |0.13        |no      |1.0          |9.0      |1.0       |1.0   |

|max    |12.0   |57.0 |15.0        |yes     |5.0          |20.0     |7.0       |5.0   |

+-------+-------+-----+------------+--------+-------------+---------+----------+------+

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