Documentation

aggregate.count() function

aggregate.count() is a user-contributed function maintained by the package author and can be updated or removed at any time.

aggregate.count() constructs a count aggregate for the column.

Function type signature
(
    ?column: A,
    ?fill: B,
) => {
    reduce: (state: int, values: [E]) => int,
    init: (values: [D]) => int,
    fill: B,
    compute: (state: C) => C,
    column: A,
}
For more information, see Function type signatures.

Parameters

column

Name of the column to aggregate.

fill

When set, value to replace missing values.


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