# `Macaw.Data.Operations.Transforms.Sum`
[🔗](https://github.com/dcoai/macaw_data/blob/v0.5.3/lib/macaw/data/operations/transforms/group.ex#L104)

`sum` (spec/04 §4.10): `aggregate` with `fn: "sum"`, `as` `"sum"` by default. It is
vocabulary a design writes, not a deprecated alias.

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*Consult [api-reference.md](api-reference.md) for complete listing*