Example dataframe for input categorical data with structural zeros (with missing values). It contains 1000 observations and 5 variables.
[,1] | AGEP | age | 7 levels |
[,2] | MAR | marital status | 5 levels |
[,3] | SCHL | educational attainment | 9 levels |
[,4] | SEX | sex | 2 levels |
[,5] | WKL | When last worked | 3 levels |