This is my excel sheet:
I want to calculate the standard deviation of column c (and f) a in a 5 day window. The problem is when I start at line 14, obviously, the standard deviation of a number does not exist and then I get the result:
# div / 0!
I want to work around this problem, but keep the formula
= STDEV (D14: D18). How do I do this?
I thought of something like: if
= STDEV (D14: D18) = 0 # div / 0! then `= STDEV (D15: D18) otherwise = STDEV (D14: D18).
That way I preserve the formula and can drag it upwards.
Any help guys?
Could you use