Complete hierarchy definition.
The hierarchy is a tree (or forest aggregated under a single root). Leaf nodes (no children) are the "bottom level" — their forecasts are summed up to produce every ancestor's forecast after reconciliation.
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All nodes in the hierarchy. Must form a valid tree.
Complete hierarchy definition.
The hierarchy is a tree (or forest aggregated under a single root). Leaf nodes (no children) are the "bottom level" — their forecasts are summed up to produce every ancestor's forecast after reconciliation.