Hi,
I have a range consisting of two columns, one with codes and one with dates. (That is, to each code (shown in the first column) you have a date attached (shown in the column to the right of the code). For each code I want to count the number of times this code is shown, grouped by date intervals, that is, for ex how many times the code A2B is shown within the time interval 05/01/2006 to 05/31/2006.
Thus, the result should be a table showing how many times A2B occured during january, how many times the code A2B occured during February and so on for each month and for each code.
Also this range is dynmamic, ie people can add and/or remove codes from the range.
All ideas are welcome!