Count occurances of random number groups

NKB

New Member
Joined
Nov 14, 2009
Messages
2
Hi Everyone....Can anyone please suggest a formula in Excel 2003 which can be used to count the number of occurances of random number groups in a column? A group is classed as 1 or more numbers that occur consecutively. An example of the data (each number in an individual cell) is;

2, 2, 5, 5, 3, 3, 2, 2, 1, 5, 5, 5, 5, 2, 1, 1, 3, 3....

The above shown as groups would be; 2 (2's), 2 (5's), 2 (3's), 2 (2's), 1 (1), 4 (5's), 1 (2), 2 (1's), 2 (3's).

The result of the above would be;

Occurance of 2 no. 2 = 2
Occurance of 2 no.5 = 1
Occurance of 2 no. 3 = 2
Occurance of 1 no. 1 = 1
occurance of 4 no. 5 = 1
Occurance of 2 no. 1 = 1

Any assistance or suggestions will be appreciated.
 

Excel Facts

Using Function Arguments with nested formulas
If writing INDEX in Func. Arguments, type MATCH(. Use the mouse to click inside MATCH in the formula bar. Dialog switches to MATCH.

Domenic

MrExcel MVP
Joined
Mar 10, 2004
Messages
20,830
Office Version
  1. 365
Platform
  1. Windows
To count number of times 4 consecutive 5's occur, assuming that A2:A100 contains the data, C2 contains 4, and D2 contains 5, try...

=SUM(IF(FREQUENCY(IF($A$2:$A$100=D2,ROW($A$2:$A$100)),IF($A$2:$A$100<>D2,ROW($A$2:$A$100)))=C2,1))

...confirmed with CONTROL+SHIFT+ENTER, not just ENTER.
 
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