我在这里需要什么Excel公式？

Question

I have a spreadsheet working on that has a list of activities that occurred between January and December and each activity occurred multiple times during January thru December ie: June there were 12 different entries that occurred with one activity occurring multiple times

What I need is to count the number of occurrences of a certain activity but only those occurring in June. I have tried the count function, the sum function, the countif function, the sumif function, and the if function - nothing is working!

Also I am using 2010 Excel, here is example of my tried equations =countif(a3:a16,a73,c4,a3:a165) . The range a3:a165 is data range a73 is date c4 is activity. I am just drawing a blank and have researched it but nothing seems to fit and I haven't used Excel in this form since high school.

Column a is month column c is activity column b is persons name

Answer 1

have you tried COUNTIFS it is same as COUNTIF but it takes multiple conditions.

Since you didn't specify all relevant ranges I'll assume that A3:a165 has the dates, and B3:B165 has activity names

=COUNTIFS(MONTH(A3:A165),Month(a73),B3:B165,C4)

So you were almost there. However if this doesn't work for you consider adding column C if possible where you would use following formula(ex. of C3) =MONTH(A3) and your countif formula would would look like this

=COUNTIFS(A3:A165,MONTH(A73),B3:B165,C4)