Are decision trees always binary trees?

[tbhaxor]

Based on this example from course, what do you thin?

[tbhaxor]

Can decision tree algo used for regression?

Hi @tbhaxor, most algorithms to create trees rely on binary splits. I noticed this question is also asked here: Are decision trees always binary trees? Feel free to follow if this is of interest for you! If you have a loo large depth or too complex model with too many parameters, you really increase the risk of overfitting which you can see, e.g on your test set performance or residual analysis of train and test set, see also this thread for some info: Didn't understand: (Model selection base…