I believe I may have found a bug in the SLOPE function...
For example, using XlsIO I am setting the formula of a cell as follows:
=SLOPE(C2:S2, $C$1:$S$1)
If any of the cells between C2 and S2 are blank, then it results in #N/A.
However the same formula in Excel produces a valid number. It seems that Excel is handling the blank cells, but XlsIO is not.
This is absolutely crucial for me, is there any way around it?