name place first_time money_spent city Anna Florida TRUE 44 Tampa Anna Florida FALSE 22 Fort Anna Florida FALSE 289 Bay Anna Florida FALSE 0 Miami Ryan Mexico FALSE 0 Cancun Ryan Mexico TRUE 122 Tijuana Ryan Mexico FALSE 0 Puebla
hi, so I am curious for within each group(name, place) how many cities have a non-zero, positive value value for money_spent where first-time == FALSE
so for group "Anna/Florida", the result is 2. (Fort, 22, and Bay 289, but Miami has 0)
so for "Ryan/Mexico", the result is 0, since Cancun, 0 and Puebla, 0.