Introduction: Summing elements in a range in specific ways is covered by Excel"s SUMIF function, but you may want to look at using one of our, very direct, functions that fulfil many common needs:
- SumNeg and SumPos sum just the negative or positive elements respectively.
- SumCat is one of our most useful functions and adds all the elements that correspond to certain categories. This function is great for analysing lists or accounting entries.
- A related function SumCats, the plural form, allows you to specify more than one category to add. Categories are specified by integer numbers.
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