• 1. Missing at Random: 在缺失机制是随机缺失 | 这就引出了随时缺失 | 或者随机缺失
• 2. Not Missing At Random: 非随机缺失 | 非随机 | 与非随机缺失
• 3. missing at random MAR: 随机缺失

更多释义

• 1.We develop imputation estimators of mean of responses for semiparametric varying-coefficient model with response variables missing at random.
  在响应变量随机缺失时，研究了半参数变系数模型响应变量均值的借补估计。
  dict.yoduao.com
• 2.It is very important to divide the missing data into three manners: missing at random (MAR), missing not at random (MNAR) and missing completely at random (MCAR).
  将数据缺失方式划分为随机缺失，非随机缺失与完全随机缺失，这对于合理编写缺失数据推估程序，正确选用估算方法有很重要的意义。
  dict.yoduao.com
• 3.The machine fixes the length at random, and has accurate and stable photoelectric tracking. If any missing bags, it will stop running automatically.
  任意定长，步长光电跟踪，平稳，丢标三个袋子以上自动停机。
  dict.yoduao.com

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