Google Spreadsheets: Alternating Background Color on Value Change?

Question

there are lots of topics about Conditional Formatting in Google Spreadsheets, but not one like what I\'m looking for.

All I want to do is set an alt

Answer 1

0 / 1

Please try this formula on B1:

={1;ArrayFormula(IF(OFFSET(A2,,,COUNTA(A:A)-1)<>OFFSET(A2,-1,,COUNTA(A:A)-1),1,0))}

will add one's when new value in a row occurs.

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Counter

Next formula will make a counter for values in A:A.

Paste it in C1:

ArrayFormula(SUMIF(ROW(OFFSET(B1;;;COUNTA(A:A))); "<="&ROW(OFFSET(B1;;;COUNTA(A:A)));OFFSET(B1;;;COUNTA(A:A))))

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Formating

Conditional formatting on range A:Z with the following formula: =isOdd($C1)