scikit-learn/scikit-learn — pull request #2031 by jnothman (2013-06-05 02:57:53+00:00)
Title: DOC Detail on parent-child relationship in tree

Some explanation of the `Tree` object seemed lacking (especially as the class docstream boasts that "you can find a detailed description of all arrays below"!). It seems to me that the parent index always precedes its children and that the left child is the `x <= t` case and right is `x > t`. But I need to confirm that these are true, and that I've described them clearly enough.