sum()

Sum

Returns the running sum of a source.

sum() is similar to subtotal() but unlike subtotal it does not use categorization to create multiple running totals.

Remember that CsvPath Language will convert None, bool, and the empty string to int. This results in a predictable summation. If you are looking for a way to make sure all lines have summable values try using integer() or another approach.

Data signatures
sum( sum this: $${\color{green}int}$$ ǁ $${\color{green}float}$$ )

Call signatures
sum( sum this: Variable ǁ Function ǁ Term ǁ Header )

Purpose	Value
Main focus	sum() produces a calculated value

Context	Qualifier
Match qualifiers	onmatch
Value qualifiers	onmatch
Name qualifier	optionally expected

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