Icon

04 Flow Variables

Exercise for creating and using flow variables.

Use a flow variable to customize the workflow based on the output of a previous node.

Exercise: Flow VariablesRead the JoinedCountryTable.table file by executing the Table Reader node. This table contains information about the demographics,geolocation, and travel risks in the different countries/territories in 2020.1.1) Let's look for the northmost country or territory in the data. Calculate first the maximum latitude value in the data.1.2) Transform it into a flow variable1.3) Filter the data by this flow variable to the northmost country. Use the Rule-based Row Filter node. Which country is it? JoinedCountryData.tableMaximum latitudeFilter to the northmost countryor territory Table Reader GroupBy Rule-basedRow Filter Table Rowto Variable Exercise: Flow VariablesRead the JoinedCountryTable.table file by executing the Table Reader node. This table contains information about the demographics,geolocation, and travel risks in the different countries/territories in 2020.1.1) Let's look for the northmost country or territory in the data. Calculate first the maximum latitude value in the data.1.2) Transform it into a flow variable1.3) Filter the data by this flow variable to the northmost country. Use the Rule-based Row Filter node. Which country is it? JoinedCountryData.tableMaximum latitudeFilter to the northmost countryor territory Table Reader GroupBy Rule-basedRow Filter Table Rowto Variable

Nodes

Extensions

Links

Download

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

Download Workflow
Created by: Maarit Laukkanen
Created at: 2020-10-23
On NodePit since: 2023-03-09
Last update: 2024-11-18
Created with KNIME version: v4.7.0
Tags: flow variabletable row to variable

Deploy, schedule, execute, and monitor your KNIME workflows locally, in the cloud or on-premises – with our brand new NodePit Runner.

Try NodePit Runner!