list // // +-------------------------------------------------------------------------------------------------------------------+ // | make price mpg rep78 headroom trunk weight length turn displa~t gear_r~o foreign | // |-------------------------------------------------------------------------------------------------------------------| // 1. | AMC Concord 4,099 22 3 2.5 11 2,930 186 40 121 3.58 Domestic | // 2. | AMC Pacer 4,749 17 3 3.0 11 3,350 173 40 258 2.53 Domestic | // 3. | AMC Spirit 3,799 22 . 3.0 12 2,640 168 35 121 3.08 Domestic | // 4. | Buick Century 4,816 20 3 4.5 16 3,250 196 40 196 2.93 Domestic | // 5. | Buick Electra 7,827 15 4 4.0 20 4,080 222 43 350 2.41 Domestic | // |-------------------------------------------------------------------------------------------------------------------| // 6. | Buick LeSabre 5,788 18 3 4.0 21 3,670 218 43 231 2.73 Domestic | // 7. | Buick Opel 4,453 26 . 3.0 10 2,230 170 34 304 2.87 Domestic | // 8. | Buick Regal 5,189 20 3 2.0 16 3,280 200 42 196 2.93 Domestic | // 9. | Buick Riviera 10,372 16 3 3.5 17 3,880 207 43 231 2.93 Domestic | // +-------------------------------------------------------------------------------------------------------------------+ //描述mpg,总结其类型 范围 值分为几类，每类出现的次数 有几个缺失值 codebook mpg // // ------------------------------------------------------------------------------------------------------------------ // mpg Mileage (mpg) // ------------------------------------------------------------------------------------------------------------------ // // Type: Numeric (int) // // Range: [15,26] Units: 1 // Unique values: 7 Missing .: 0/9 // // Tabulation: Freq. Value // 1 15 // 1 16 // 1 17 // 1 18 // 2 20 // 2 22 // 1 26
标签：mpg,26,20,16,Domestic,codebook,命令,STATA,Buick From： https://www.cnblogs.com/xkdn/p/17151509.html