'MinParentSize' and 'MinLeafSize' -- regression tree
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It introduces the MinParentSize below as:
Minimum number of branch node observations, specified as the comma-separated pair consisting of 'MinParentSize' and a positive integer value. Each branch node in the tree has at least MinParentSize observations. If you supply both MinParentSize and MinLeafSize, fitrtree uses the setting that gives larger leaves: MinParentSize = max(MinParentSize,2*MinLeafSize).
Example: 'MinParentSize',8
Data Types: single | double
My question is about this line: MinParentSize = max(MinParentSize,2*MinLeafSize). Why there is a 2*? And could you give me an example in this case?
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