- Missing data
- (statistics) The manner in which data are missing from a sample of a population
- These methods are very sensitive to assumptions made about the missingness mechanism or about the distributions of the variables with missing data.
- 2006, Mamdouh Refaat, Data Preparation for Data Mining Using SAS, page 180
- Some imputation models require the data to have a certain distribution of their missing values, their missingness pattern.
missing + -ness