The NETDRAW procedure automatically draws any acyclic network. They do not have to be representations of a project. You can also use the procedure to draw a general directed graph that has cycles, if ...
Plant Ecology, Vol. 194, No. 1 (Jan., 2008), pp. 5-16 (12 pages) Disturbances and environmental heterogeneity are two factors thought to influence plant species diversity, but their effects are still ...