Timeline for Logic of keeping the missing data there but adding a new variable indicates if an entry of the previous column is a missing value
Current License: CC BY-SA 3.0
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Apr 16, 2017 at 4:37 | comment | added | GeoMatt22 | Note that if you delete this answer, reputation lost due to downvotes will be restored. | |
| Apr 15, 2017 at 16:26 | comment | added | Jeffrey Girard | This approach of single imputation is also likely to bias standard errors. | |
| Apr 15, 2017 at 5:02 | comment | added | horaceT | That doesn't answer OP's question. He's asking why one would create an extra variable to flag the missingness. | |
| Apr 15, 2017 at 5:01 | review | First posts | |||
| Apr 15, 2017 at 5:29 | |||||
| Apr 15, 2017 at 5:00 | history | answered | Ngetich Robert | CC BY-SA 3.0 |