Need help with Count, Counta, Countif

[Ayo]

I have a sheet with 2 columns, A & B. Column A contains list of market (non
unique) and column B contains dates. I am looking for a way to perform a
count using both coulmns. Say for instance, I wan t to know how many MarketA,
or MarketB in column A has a date in column B, how would I go about writing
that formular?
I tried this =COUNTA(IF((D181769<>"")*(B18:B1769=B5),)) but it only
results in 1.

 

[Ayo]

Thanks Dave. One other question. Can it be used with more than 2 criteria i.e.,
SUMPRODUCT(--(Baseline!$A$5:$A$1756=$B$2),--(Baseline!$D$5:$D$1756=B$3),--(Baseline!$E$5:$E$1756="Projected"))

Thanks

 

[Dave Peterson]

What happened when you tried it?

Thanks Dave. One other question. Can it be used with more than 2 criteria i.e.,
SUMPRODUCT(--(Baseline!$A$5:$A$1756=$B$2),--(Baseline!$D$5:$D$1756=B$3),--(Baseline!$E$5:$E$1756="Projected"))

Thanks