SAS.GRAPH 9.1 Reference, Volumes I and II

The following sample programs generate these kinds of Constellation diagrams:

Constellation Chart with DATATYPE=ARCS

This sample program generates a very simple Constellation diagram. It displays a number of countries and the languages spoken in those countries .

Results Shown in a Browser

The following is the Constellation diagram that is generated by the sample code shown below. Notice the help window. Because the diagram is displayed by the Constellation applet, it is not just a static picture. A user can manipulate the diagram, for example, by moving nodes and searching for nodes. The Mouse Help window in the following diagram documents for the user what interactivity is available (right-click a diagram to invoke the window).

SAS Code

The following is the complete SAS code used to generate a Constellation diagram from a SAS data set. Notice the following:

/*Define a nodes data set of countries and languages */ data nodedata; input nodeLabel . shape . color . size; cards; France square red .1 Germany square red .1 Italy square red .1 Belgium square red .1 Switzerland square red .1 Holland square red .1 German triangle blue .1 French triangle blue .1 Italian triangle blue .1 Flemish trianglr blue .1 Dutch triangle blue .1 ; run; /*Define a links data set */ data linkdata; input from . to .; cards; France French Germany German Belgium French Belgium German Belgium Flemish Belgium Dutch Switzerland French Switzerland German Switzerland Italian Italy Italian Italy German Holland Dutch ; run; goptions reset=all; /* make sure ods listing is open when running macro */ ods listing; /*Run the DS2CONST macro*/ %ds2const(ndata=nodedata, ldata=linkdata, datatype=arcs, cnode=red, colormap=y, height=400, width=500, code=ConstChart, codebase=http:// your_path_to_archive , htmlfile= your_path_and_filename .htm, nid=nodelabel, nlabel=nodelabel, lfrom=from, lto=to, fntsize=12, nshape=shape, ncolor=color, nsize=size);

Constellation Chart with DATATYPE=ASSOC

This sample program generates a very simple Constellation diagram with DATATYPE=ASSOC.

Results Shown in a Browser

The following is the Constellation diagram that is generated by the sample code. A Constellation diagram with DATATYPE=ASSOC depicts the strength of the relationships among variables. Variables in the SAS data set determine the size and color of nodes, as well as the width and color of the lines between nodes. At the bottom of the picture, notice the slider bar which allows a user to choose how many of the links on the diagram are displayed. Move the slider to the left, and only the most important links are displayed. Move the slider to the right, and all of the links are displayed.

SAS Code

The following is the complete SAS code to generate a Constellation diagram from a SAS data set. Notice the following:

data nodedata; length nodeID value 8 label tip ; input nodeID value @11 label $char11. @25 tip $char25.; cards; 0 6556 depression depression: #6556 1 6322 anxiety anxiety: #6322 2 5980 fatigue fatigue: #5980 3 5286 headache headache: #5286 4 4621 chest pain chest pain: #4621 6 3149 nausea nausea: #3149 ; run; data linkdata; length from to linkvalue 8 tip ; input from to linkvalue @13 tip $char40.; cards; 2 0 5978 #5978, Support:63.0790, Conf:99.9833 4 1 4621 #4621, Support:48.7602, Conf:100.0000 1 0 4307 #4307, Support:45.4469, Conf:68.1272 1 2 3964 #3964, Support:41.8276, Conf:62.7017 2 3 3010 #3010, Support:31.7611, Conf:50.3429 0 3 3009 #3009, Support:31.7506, Conf:47.5957 1 6 2772 #2772, Support:29.2498, Conf:43.8469 4 6 2609 #2609, Support:27.5298, Conf:56.4596 4 0 2606 #2606, Support:27.4982, Conf:56.3947 4 2 2263 #2263, Support:23.8789, Conf:48.9721 3 0 1980 #1980, Support:20.8927, Conf:40.6821 3 1 1701 #1701, Support:17.9487, Conf:34.9497 3 2 1701 #1701, Support:17.9487, Conf:34.9497 1 3 1593 #1593, Support:16.8091, Conf:25.1977 4 3 1152 #1152, Support:12.1557, Conf:24.9297 0 6 623 #623, Support:6.5738, Conf:9.8545 2 6 623 #623, Support:6.5738, Conf:10.4198 6 3 597 #597, Support:6.2995, Conf:20.0268 3 6 372 #372, Support:3.9253, Conf:7.6433 6 0 344 #344, Support:3.6298, Conf:11.5398 run; /* make sure ods listing is open when running macro */ ods listing; title1 'Diagnosis Sequence Diagram.'; %ds2const(ndata=nodedata, ldata=linkdata, datatype=assoc, minlnkwt=30, height=450, width=600, codebase=http:// your_path_to_archive , htmlfile= your_path_and_filename .htm, colormap=y, nid=nodeID, nlabel=label, nvalue=value, fntsize=12, ntip=tip, lfrom=from, lto=to, lvalue=linkvalue, ltip=tip, linktype=arrow);

Constellation Chart with XML Written to an External File

This sample program generates the same Constellation diagram as the previous example, Constellation Chart with DATATYPE=ASSOC on page 520, with the difference that the XML is written to an external file instead of being embedded in the HTML file.

SAS Code

The following is the complete SAS code to generate the Constellation diagram from a SAS data set. You can notice the following:

data nodedata; length nodeID value 8 label tip ; input nodeID value @11 label $char11. @25 tip $char25.; cards; 0 6556 depression depression: #6556 1 6322 anxiety anxiety: #6322 2 5980 fatigue fatigue: #5980 3 5286 headache headache: #5286 4 4621 chest pain chest pain: #4621 6 3149 nausea nausea: #3149 ; run; data linkdata; length from to linkvalue 8 tip ; input from to linkvalue @13 tip $char40.; cards; 2 0 5978 #5978, Support:63.0790, Conf:99.9833 4 1 4621 #4621, Support:48.7602, Conf:100.0000 1 0 4307 #4307, Support:45.4469, Conf:68.1272 1 2 3964 #3964, Support:41.8276, Conf:62.7017 2 3 3010 #3010, Support:31.7611, Conf:50.3429 0 3 3009 #3009, Support:31.7506, Conf:47.5957 1 6 2772 #2772, Support:29.2498, Conf:43.8469 4 6 2609 #2609, Support:27.5298, Conf:56.4596 4 0 2606 #2606, Support:27.4982, Conf:56.3947 4 2 2263 #2263, Support:23.8789, Conf:48.9721 3 0 1980 #1980, Support:20.8927, Conf:40.6821 3 1 1701 #1701, Support:17.9487, Conf:34.9497 3 2 1701 #1701, Support:17.9487, Conf:34.9497 1 3 1593 #1593, Support:16.8091, Conf:25.1977 4 3 1152 #1152, Support:12.1557, Conf:24.9297 0 6 623 #623, Support:6.5738, Conf:9.8545 2 6 623 #623, Support:6.5738, Conf:10.4198 6 3 597 #597, Support:6.2995, Conf:20.0268 3 6 372 #372, Support:3.9253, Conf:7.6433 6 0 344 #344, Support:3.6298, Conf:11.5398 run; title1 'Diagnosis Sequence Diagram.'; /* make sure ods listing is open when running macro */ ods listing; %ds2const(ndata=nodedata, ldata=linkdata, datatype=assoc, minlnkwt=30, height=450, width=600, codebase=http:// your_path_to_archive , htmlfile= your_path_and_filename .htm, xmltype=external, makexml=y, xmlurl=http://www.xyz.com/Web_output/const_assoc_external.xml, xmlfile=u://Web_output/const_assoc_external.xml, colormap=y, nid=nodeID, nlabel=label, nvalue=value, fntsize=12, ntip=tip, lfrom=from, lto=to, lvalue=linkvalue, ltip=tip, linktype=arrow);

Constellation Chart with Hotspots

This sample program generates the same Constellation diagram as in Constellation Chart with DATATYPE=ARCS on page 518 and adds hotspots to the nodes of the diagram.

SAS Code

The following is the complete SAS code to generate the Constellation diagram from a SAS data set. Notice the following:

/*Define a nodes data set of countries and languages */ data nodedata; input nodeLabel . shape . color . size url .; cards; France square red .1 http://www.xyz.com Germany square red .1 http://www.xyz.com/rnd/webgraphs/ Italy square red .1 http://www.xyz.com Belgium square red .1 http://www.xyz.com/rnd/webgraphs/ Switzerland square red .1 http://www.xyz.com Holland square red .1 http://www.xyz.com German triangle blue .1 http://www.xyz.com French triangle blue .1 http://www.xyz.com/rnd/webgraphs/odssyntax.htm Italian triangle blue .1 http://www.xyz.com Flemish triangle blue .1 http://www.xyz.com Dutch triangle blue .1 http://www.xyz.com ; run; /*Define a links data set: */ data linkdata; input from . to .; cards; France French Germany German Belgium French Belgium German Belgium Flemish Belgium Dutch Switzerland French Switzerland German Switzerland Italian Italy Italian Italy German Holland Dutch ; run; goptions reset=all; /* make sure ods listing is open when running macro */ ods listing; /*Run the DS2CONST macro:*/ %ds2const(ndata=nodedata, ldata=linkdata, nurl=url, datatype=arcs, cnode=red, colormap=y, height=400, width=500, code=ConstChart, codebase=http:// your_path_to_archive , htmlfile= your_path_and_filename .htm, nid=nodelabel, nlabel=nodelabel, lfrom=from, lto=to, fntsize=12, nshape=shape, ncolor=color, nsize=size);

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