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9.2

Excel: COUNT Unique Entries in Column A Based on Filter in Column B - No Pivot Tables, If VBA then Function Only

Asked by jfdinneen in Microsoft Excel Spreadsheet Software

Tags: , , , ,

How do I count the unique entries in a column A (20000 rows) based on a filter in column B?

A                             B
USA                         North America
GB                           Europe
France                     Europe
South Korea             Asia
France                     Europe
Nigeria                     Africa
Germany                  Europe
Peru                        South America
GB                           Europe
USA                         North America
Canada                    North America
...

If filter equals Europe, then answer should be 3 (France, GB, Germany); if North America, then 2 (Canada, USA)

I use the following array formula to count the unique countries in column A but it does not take account of the continent filter in column B:
=SUM(IF(COUNTIF(lstCountries,lstCountries)=0, "", 1/COUNTIF(lstCountries,lstCountries)))

Please advise?

Best wishes,

JohnStart Free Trial
 
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[+][-]04.07.2006 at 12:41AM PDT, ID: 16398487

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[+][-]04.07.2006 at 10:27AM PDT, ID: 16402466

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About this solution

Zone: Microsoft Excel Spreadsheet Software
Tags: count, excel, unique, entries, column
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Solution Provided By: byundt
Participating Experts: 2
Solution Grade: A
 
 
[+][-]04.07.2006 at 10:36AM PDT, ID: 16402565

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