Let’s Try To Understand How This Formula Works: Note: This is an array formula so, after writing the formula press ‘Control-Shift-Enter’ and the formula will get surrounded by curly braces as shown below. Here, ‘data’ represents the range that contains the values.Īnd ‘firstcell’ represents the first cell of the range. = SUM( IF( FREQUENCY( IF(data "", MATCH(data,data,0)), ROW(data) - ROW(firstcell) +1),1)) To fix this, you can use the following variant of the above formula that ignores the blank cells: In such cases the formula throws a ‘divide by zero’ error.īecause, CountIF function generates a ‘0’ for each blank cell and when 1 is divided by 0 it returns a divide by zero error. This formula woks nicely on a continuous set of values in a range, however if your values contain empty cells, then this formula fails. Read these articles for more details on CountIF Function or SumProduct Function. This means that, if a value appears 4 times in the range then its value will become as 1/4 = 0.25 and value that is present only once will become 1/1 = 1įinally, the SumProduct formula adds up all the elements in the array and returns the final result. This modifies the result of CountIF formula such that values that only appear once in the array become 1 and the numbers corresponding to duplicate values become fractions corresponding to the multiple. Next, the results of CountIF formula are used as a divisor with 1 as numerator. The result is an array of numbers and in our example it might look something like this. The CountIF function looks inside the data range (B2:B9) and counts the number of times each value appears in data range. Let’s first understand the role of inner CountIF function. This formula consists of two functions combined together. ‘data’ – data represents the range that contains the values
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