# Solutions to “Just KNIME It!” Challenge 6 - Season 4

**URL:** <https://forum.knime.com/t/solutions-to-just-knime-it-challenge-6-season-4/88654>\
**Category:** JKI Season 4\
**Tags:** medium\
**Created:** [June 18, 2025, 2:05pm UTC](https://forum.knime.com/t/solutions-to-just-knime-it-challenge-6-season-4/88654 "2025-06-18T14:05:32Z")\
**Posts on this page:** 1\
**Showing post:** 23

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**Author:** ![gonhaddock](https://forum-cdn.knime.com/user_avatar/forum.knime.com/gonhaddock/32/35425_2.png) [@gonhaddock](https://forum.knime.com/u/gonhaddock)\
**Post date:** [June 23, 2025, 10:09am UTC](https://forum.knime.com/t/solutions-to-just-knime-it-challenge-6-season-4/88654/23 "2025-06-23T10:09:24Z")

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Hello @ KNIMErs  
Here is mi submission for the [JKI S04 CH06](https://hub.knime.com/s/yLirWbPkaKeAOamx) . I still have to do some homework to fully understand all the node configs implications ; then I will get more confident working ML within KNIME.

I’ve added a ‘one-hot encoding’ component from my own, delivered for queries in forum. Within this [[topic](https://forum.knime.com/t/applying-trained-model-new-data-missing-column-from-one-to-many/77346/8) ]: You can find the explanation why, it is not applied for Random Forest Learner use case in the submitted WF.

![image](https://forum-cdn.knime.com/uploads/default/original/3X/8/6/861523f1ee51a509df011e58d2aac12ae5304298.png)

Keep KNIMEing 🖖

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