I want to calculate the cumulative frequency of firms which have different identifiers and appear in different Date.
For example:
| Date | Company | Cumulative freq |
| 01/01/2011 | A | 1 |
| 02/02/2011 | B | 1 |
| 05/02/2011 | A | 2 |
| 09/12/2012 | C | 1 |
| 09/01/2013 | B | 2 |
| 10/01/2013 | A | 3 |
| 15/01/2013 | B | 3 |
| 15/01/2013 | D | 1 |
Thanks in advance!
Kind regards,
Loc
0 Response to Frequency
Post a Comment