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The NETDRAW Procedure |

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 documentation. The structure can be visualized easily in a tree diagram. The data set DOCUMENT contains the parent-child relationship for each node of the diagram. For each node, a detailed description is contained in the variable ID. In addition, the variable _pattern specifies the pattern to be used for each node. PROC NETDRAW is invoked with the TREE option, which illustrates the organization of the documentation in the form of a tree diagram drawn from left to right. The CENTERID option centers text within each node. Arrowheads are not necessary for this diagram and are suppressed by specifying AROWHEAD = 0. Output 5.15.1 shows the resulting diagram.

data document; input parent $ child $ id $ 20-43 _pattern; datalines; OR MP Operations Research 1 OR PM Operations Research 1 PM NETDRAW Project Management 2 PM GANTT Project Management 2 PM DTREE Project Management 2 PM CPM Project Management 2 MP TRANS Mathematical Programming 3 MP NETFLOW Mathematical Programming 3 MP LP Mathematical Programming 3 MP ASSIGN Mathematical Programming 3 CPM . CPM Procedure 2 DTREE . DTREE Procedure 2 GANTT . GANTT Procedure 2 NETDRAW . NETDRAW Procedure 2 ASSIGN . ASSIGN Procedure 3 LP . LP Procedure 3 NETFLOW . NETFLOW Procedure 3 TRANS . TRANS Procedure 3 ; data document; input parent $ child $ id $ 20-43 _pattern; datalines; OR MPBOOK Operations Research 1 OR PMBOOK Operations Research 1 PMBOOK CPM Project Management 2 PMBOOK DTREE Project Management 2 PMBOOK GANTT Project Management 2 PMBOOK NETDRAW Project Management 2 PMBOOK PM Project Management 2 PMBOOK PROJMAN Project Management 2 MPBOOK ASSIGN Mathematical Programming 3 MPBOOK LP Mathematical Programming 3 MPBOOK NETFLOW Mathematical Programming 3 MPBOOK NLP Mathematical Programming 3 MPBOOK TRANS Mathematical Programming 3 CPM . CPM Procedure 2 DTREE . DTREE Procedure 2 GANTT . GANTT Procedure 2 NETDRAW . NETDRAW Procedure 2 PM . PM Procedure 2 PROJMAN . PROJMAN Application 2 ASSIGN . ASSIGN Procedure 3 LP . LP Procedure 3 NETFLOW . NETFLOW Procedure 3 NLP . NLP Procedure 3 TRANS . TRANS Procedure 3 ; goptions ftext=swiss; pattern1 v=s c=blue; pattern2 v=s c=red; pattern3 v=s c=green; title j=l h=1.5 ' Operations Research Documentation'; title2 j=l h=1 ' Procedures in Each Volume'; footnote j=r h=.75 'Default Tree Layout '; proc netdraw graphics data=document; actnet / act=parent succ=child id=(id) nodefid nolabel pcompress centerid tree arrowhead=0 xbetween=15 ybetween=3 rectilinear carcs=black ctext=white htext=2.5; run;

The procedure draws the tree compactly with the successors of each node being placed to the immediate right of the node, ordered from top to bottom in the order of occurrence in the Network data set. The next invocation of PROC NETDRAW illustrates the effect of the SEPARATESONS and CENTERSUBTREE options on the layout of the tree (see Output 5.15.2).

footnote j=r h=.75 'Centered Tree Layout '; proc netdraw graphics data=document; actnet / act=parent succ=child id=(id) nodefid nolabel pcompress novcenter centerid tree arrowhead=0 separatesons centersubtree xbetween=15 ybetween=3 rectilinear carcs=black ctext=white htext=3; run;

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