This chart shows the estimated tree cover loss per region and primary causes in 2001-2024 (in million hectares).

This example illustrates using the TREE option to draw organizational charts. The Network data set, DOCUMENT, describes how the procedures are distributed between the two volumes of the new SAS/OR ...

An equivalent characterization of a tree is that the root node has no predecessors and every other node has exactly one predecessor (Even 1979). Typical examples of trees that arise in project ...