Aggregate
Group by columns and compute measures.
Groups by groupBy and computes measures within each group. With no groupBy the whole frame is one group, which is how a single total is taken.
At a glance
Module type
Aggregate
Category
Primitives · Dataframe
Default tier
reactive
Runs on
reactive, durable
Starts a flow
no
Holds a body
no
Keeps state between runs
no
Available in
every application type
Parameters
groupBy
string[] · required · defaults to []
The grouping columns. Empty makes the whole frame one group.
measures
object[] · required · defaults to []
What to compute per group: a column, a function, and the name to write it under.
Inputs
on
event
no
Implicit on every module that does not itself start a flow: wire an event here to make this module the start of what that event runs.
data
dataframe
yes
The frame to work on.
Outputs
output
dataframe
dataframe, signal
One row per group: the grouping columns, then one column per measure.
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