Hi Experts, I have a question.
if column A has letters A, B, C or D multiple and column B has numbers 1, 2
or 3.

Column A Column B
a 1
a 1
a 2
a 2
a 2
a 2
a 1
a 2
a 1
b 2
b 1
b 1
b 2
b 1
b 1
b 1
c 2

I want to count the instances where
column A has A and Column B has 1
column A has A and Column B has 2
column A has A and Column B has 3
column A has B and column B has 1
column A has B and column B has 2
column A has B and column B has 2
column A has B and column B has 3
column A has C and column B has 1
column A has C and column B has 2
column A has C and column B has 3
column A has D and column B has 1
column A has D and column B has 2
and
column A has D and column B has 3

please help me...