Cumulative Count for Grouping

Calculates the cumulative count of a given rows grouped by a given grouping column.

Note that this component does not perform any sorting of the data and will treat every change of group name as a new group. If your data is not already grouped into contiguous blocks of rows representing each group, you must sort your data prior to using this component.

This is based on my Cumulative Sum for Grouping component but instead of aggregating a "value" column, it returns a ranked count of rows in a group
@takbb Brian Bates 22 September 2025

Options

Grouping Column
Select the column by which data is to be grouped
Cumulative Count output column name
Enter a new column name to contain the cumulative count for each group

Input Ports

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Table containing the data for which a cumulative aggregation (sum) is required

Output Ports

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Table with additional column containing the calculated cumulative data

Nodes

Extensions

Links

Download

To use this component in KNIME, download it from the below URL and open it in KNIME:

Download Component
On NodePit since: 2025-09-22
Last update: 2025-09-22
Created with KNIME version: v4.7.8

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