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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

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

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Created by: Maarit Laukkanen
Created at: 2020-10-23
On NodePit since: 2023-03-09
Last update: 2024-12-19
Created with KNIME version: v4.7.0
Tags: flow variabletable row to variable

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