COUNT TRIPLETs present in an array of values
The following formula: =SOMMA(SE(FREQUENZA(SE($A$3:$M$7=O3;RIF.RIGA($A$3: $M$7);SE($A$3:$M$7=P3;RIF.RIGA($A$3:$M$7);0));RIF. RIGA($A$3:$A$7)-1)=2;1;0))
manages to count PAIRS present in a given array of values …
QUESTION:
HOW can it be modified to count triplets instead of Pairs of values?
Sample file attached.
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