How can I fill an Excel array without using VBA?

Question

I have data in the format (Observed value, Number of observations) and would like to convert it to an array of values. For example, if I had (Value = 12, Number of observations = 3), I would like to use built-in formulas to create 3 cells each containing the number 12. Is this possible? This is an example of what I'm trying to do. Thanks!

Answer 1

If you're willing to accept empty string instead of blank then, assuming your first column of inputs are in A1:A2 , fill your output range for column A starting from A4 with:

=IF(ROW()-ROW(A$4)<A$2,A$1,"")

You can avoid the reference to the top cell by using:

=IF(ROW()-MIN(ROW())<A$2,A$1,"")

Make it an array formula ( Ctrl + Shift + Enter ) in the output range of column A.

You can copy either of these to the right to support additional columns.