Data missing mechanism and its test method
| Data missing mechanism | Test method |
|---|---|
| Missing Completely at Random (MCAR) | By judging the consistency of descriptive statistical features such as mean and variance |
| Missing at Random (MAR) | Logit model is used to describe the distribution of missing variables and test the significance |
| Not Missing at Random(NMAR) | Analyze the patterns and causes of missing data |
| Data missing mechanism | Test method |
|---|---|
| Missing Completely at Random (MCAR) | By judging the consistency of descriptive statistical features such as mean and variance |
| Missing at Random (MAR) | Logit model is used to describe the distribution of missing variables and test the significance |
| Not Missing at Random(NMAR) | Analyze the patterns and causes of missing data |