time_stream.aggregation.Sum

class time_stream.aggregation.Sum(**kwargs)

An aggregation class to calculate the sum (total) of values within each aggregation period.

__init__(**kwargs)

Methods

__init__(**kwargs)
available()	Return a sorted list of available registered keys.
expr(ctx, columns)	Return the Polars expression for calculating the sum in an aggregation period.
get(spec, **kwargs)	Resolve spec to an instance of Self:
post_expr(_ctx, _columns)	Return additional Polars expressions to be applied after the aggregation.
register(register_cls)	A method used as a decorator for subclasses to add to the register by its name attribute.

Attributes

name