Contains Subarray

[bradbarbin]

I'm trying to figure out a formula to determine whether an occurrence contains a value with the data in this sort of format. In the example below, I'd like the formula to output TRUE if the occurence contains the number 2, and false if it doesn't. I've been trying SUMPRODUCT and INDEX with no luck:

Occurrence	Data	Result (Occurrence contains 2)
Observation 1	1	TRUE
Observation 1	2	TRUE
Observation 2	3	FALSE
Observation 2	4	FALSE
Observation 2	5	FALSE
Observation 2	6	FALSE
Observation 3	4	FALSE
Observation 3	5	FALSE
Observation 3	6	FALSE
Observation 3	7	FALSE
Observation 3	8	FALSE
Observation 4	2	TRUE
Observation 4	9	TRUE
Observation 5	2	TRUE
Observation 5	5	TRUE
Observation 5	8	TRUE

<tbody>
</tbody>

 

[steve the fish]

Hi. Explain the rules again. Why does 'Observation 1' lead to TRUE? Doesnt contain 2 does it?

 

[steve the fish]

Oh i think i see now:

=COUNTIFS($A$2:$A$17,A2,$B$2:$B$17,2)>0

 

[bradbarbin]

Hi Steve the fish, thank you.

What I'm trying to do is develop a matrix for conditional probability. This helped, but I realized that I need it within an array due to the large number of occurences and data (in the real world).

Here is my simplified explanation. I have highlighted the part in the formula that is hardcoded, and needs replaced with a dyanmic array that returns the same results from above.