3. Java IF & Tables

Workflow: Java IF & Tables

This workflow implements an example of an automated if switch to control workflow execution using the Java IF (Table) node.

The cars-85.csv dataset contains various information about different cars. We want to process the data differently: the price of two-door cars should be scaled by factor 1/50 (top branch), the price of four-door cars by factor 1/100 (bottom branch). The choice of two-door or four-door is made in the Value Selection Configuration node. The output flow variable then controls the data path throughout the workflow. Finally, we visualize the data (engine_size, horse_power, and scaled_price) in a Box Plot.

Creating flow variable

To control IF Switch

Reading data

Workflow control with Java IF

Split data table based on selected number of car doors:

• Top branch: two doors

• Bottom branch: four doors

Visualizing data

• engine_size

• horse_power

• price_scaled