SAS
BIubiubiu
income2.dat| 1121 | 1 | 4 | high school | 35000 |
| 1324 | 2 | 1 | college | 50000 |
| 1587 | 2 | 1 | college | . |
| 2114 | 2 | 1 | college | 100000 |
| 3568 | 1 | 1 | college | 65000 |
| 4512 | 2 | 1 | high school | 40000 |
| 6985 | 1 | 2 | college | 55000 |
| 4412 | 1 | 1 | college | 85000 |
| 5687 | 1 | 2 | college | 75000 |
| 1598 | 2 | 2 | college | 80000 |
| 5784 | 2 | 1 | high school | 55000 |
| 2651 | 1 | 1 | high school | 40000 |
| 3201 | 1 | 1 | college | 65000 |
| 3265 | 1 | 3 | college | 50000 |
