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11_​Workflow_​Control

Workflow Control

Exercise 11 for the KNIME Analytics Platform for Data Wranglers course
- Write subsets of a file using a loop
- Read and concatenate many files using a loop
- Activate a workflow branch based on a user selection

Activity II: Reading Many Files - Use the List Files node to get the URLs of the files that were created in the previous exercise - Iterate over the list of URLs, access each file in one iteration, and concatenate the data from each iteration back into one KNIMEtable Activity I: Group Looping - Read CurrentDetailData.table data - Start a loop that handles the records for the different products in separate iterations - Write the records for each product into KNIME tables on your local machine. Use the product name as the filename. Activity III: CASE Switch Extend the workflow below with a switch that only creates one type of visualization. - Create a Single Selection Configuration node with the possible values "scatter" and "bar" - Use the CASE Switch Data (Start) that activates the top/middle branch depending on the selection scatter/bar (Use the "...(index)" flow variable to define the active port)- Combine the outputs of the two branches with the CASE Switch Data (End) node Table Reader Image To Table Image To Table Scatter Plot Bar Chart Activity II: Reading Many Files - Use the List Files node to get the URLs of the files that were created in the previous exercise - Iterate over the list of URLs, access each file in one iteration, and concatenate the data from each iteration back into one KNIMEtable Activity I: Group Looping - Read CurrentDetailData.table data - Start a loop that handles the records for the different products in separate iterations - Write the records for each product into KNIME tables on your local machine. Use the product name as the filename. Activity III: CASE Switch Extend the workflow below with a switch that only creates one type of visualization. - Create a Single Selection Configuration node with the possible values "scatter" and "bar" - Use the CASE Switch Data (Start) that activates the top/middle branch depending on the selection scatter/bar (Use the "...(index)" flow variable to define the active port)- Combine the outputs of the two branches with the CASE Switch Data (End) node Table Reader Image To Table Image To Table Scatter Plot Bar Chart

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: knime
Created at: 2014-06-17
On NodePit since: 2021-01-12
Last update: 2024-11-21
Created with KNIME version: v4.1.0
Tags: loopreading many filesswitchalternative branchworkflow controleducation

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