[FIX] Treeviewer sklearn tree compatibility #1870
Merged
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Issue
Trees output from Pythagorean forest are not compatible with the TreeViewer widget.
Description of changes
Having established that #1850 would cause far too much confusion and make the overall tree model code completely non-understandable (Adapter for sklearn trees, but now also vice versa, tree model for sklearn trees?), I've taken another stab at it.
It seems that converting the TreeViewer widget to use the TreeAdapter actually doesn't require any major changes at all. So this is what I did in this PR, TreeViewer now uses the TreeAdapter, just like PythagoreanTree, so at least it's less confusing.
This is still based on #1786 since that fixes the PythagoreanTree compatibility.
Includes