By using the Python packages "Itertools" this workflow makes it possible to loop over all all possible combinations of columns and do some math or .... In this workflow a model is trained on the different combinations of features in the Boston Housing dataset
URL: Control columns in input in loop https://forum.knime.com/t/control-columns-in-input-in-loop/25137/2
To use this workflow in KNIME, download it from the below URL and open it in KNIME:
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