Thread: Count items in column B if column c meets criteria

Maybe attaching a small sample file with the same table structure would help so we can see if you are using the right convention....

To best describe or illustrate your problem you would be better off attaching a dummy workbook, the workbook should contain the same structure and some dummy data of the same type as the type you have in your real workbook - so, if a cell contains numbers & letters in this format abc-123 then that should be reflected in the dummy workbook. Don't upload a picture when you have a workbook question. None of us is inclined to recreate your data. Upload the workbook and manually add an 'after' situation so that we can see what you expect. In addition clearly explain how you get the results..
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For the sample your provided these are the formulas in I1:I4, respectively...

=SUM(IF(FREQUENCY(IF($E$2:$E$12="Dog",IF($D$2:$D$12<>"",MATCH($D$2:$D$12,$D$2:$D$12,0))),ROW($D$2:$D$12)-ROW($D$2)+1),1))

=SUM(IF(FREQUENCY(IF($E$2:$E$12="Cat",IF($D$2:$D$12<>"",MATCH($D$2:$D$12,$D$2:$D$12,0))),ROW($D$2:$D$12)-ROW($D$2)+1),1))

=SUM(IF(FREQUENCY(IF(($E$2:$E$12="Dog")*($A$2:$A$12="1920s"),IF($D$2:$D$12<>"",MATCH($D$2:$D$12,$D$2:$D$12,0))),ROW($D$2:$D$12)-ROW($D$2)+1),1))

=SUM(IF(FREQUENCY(IF(($E$2:$E$12="Cat")*($A$2:$A$12="1940s"),IF($D$2:$D$12<>"",MATCH($D$2:$D$12,$D$2:$D$12,0))),ROW($D$2:$D$12)-ROW($D$2)+1),1))

You can sub the criteria with cell references.

Each formula must be confirmed with CTRL+SHIFT+ENTER not just ENTER.

Note: There was a misspelled word Siamese in cell D5... which would skew the actual expected results...