Links

Rolling Agg

Row-based; Calculates a rolling aggregate based on a relative row window.
Pass in order_by columns and offsets to create a row-based look-back or look-forward windows.
Example use case: Aggregate the last 10 sales for a customer regardless of when they occurred.

Parameters

Name
Type
Description
Is Optional
aggregations
agg_dict
Dictionary of columns and aggregate functions to apply. A column can have a list of multiple aggregates applied. One column will be created for each column:aggregate pair.
order_by
column_list
Column(s) to order rows by when calculating the agg window
offsets
int_list
List of numeric values to offset the date column. Positive values apply a look-back window. Negative values apply a look-forward window. One column will be created for each offset value.
group_by
column_list
Column(s) to group by when calculating the agg window
True

Example

internet_sales = rasgo.get.dataset(74)
ds = internet_sales.rolling_agg(
aggregations={
'SALESAMOUNT':['MAX', 'MIN', 'SUM']
},
order_by=['ORDERDATE'],
offsets=[-7, 7, 14],
group_by=['PRODUCTKEY'],
)

Source Code

Last modified 1yr ago