This sample demonstrates the differences between using lines and patterns to represent contour levels with PROC GCONTOUR.

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These sample files and code examples are provided by SAS Institute Inc. "as is" without warranty of any kind, either express or implied, including but not limited to the implied warranties of merchantability and fitness for a particular purpose. Recipients acknowledge and agree that SAS Institute shall not be liable for any damages whatsoever arising out of their use of this material. In addition, SAS Institute will provide no support for the materials contained herein.

This sample demonstrates the differences between using lines and patterns to represent contour levels with PROC GCONTOUR.

The graphics output in the Results tab was produced using SAS 9.2. Submitting the sample code with a release of SAS prior to 9.2 might produce different results.

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 /* Set the graphics environment */
goptions reset=all border cback=white
         htitle=12pt;  

 /* Create data set WORK.SWIRL */
data swirl;
   do x=-5 to 5 by 0.25;
      do y=-5 to 5 by 0.25;
         if x+y=0 then z=0;
         else z=(x*y)*((x*x-y*y)/(x*x+y*y));
         output;
      end;
   end;
run;

 /* Define the title for the first plot */
title1 'Simple Contour Plot';

 /* Produce the contour plot */
proc gcontour data=swirl;
   plot y*x=z;
run;
quit; 

 /* Redefine the title for the second plot */
title1 'Representing Contour Levels with Patterns';

 /* Produce the contour plot */
proc gcontour data=swirl;
   plot y*x=z / pattern
                coutline=gray;
run;
quit; 

 /* Redefine the title for the third plot */
title1 'Joining the Patterns in a Contour Plot';

 /* Define axis and legend characteristics */
axis1 label=none value=('-5' ' ' '0' ' ' '5')
      width=2;
axis2 label=none value=('-5' ' ' '0' ' ' '5')
      width=2;

legend frame;

 /* Produce the contour plot */
proc gcontour data=swirl;
   plot y*x=z / pattern
                join
                haxis=axis1
                vaxis=axis2
                legend=legend1;
run;
quit;

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These sample files and code examples are provided by SAS Institute Inc. "as is" without warranty of any kind, either express or implied, including but not limited to the implied warranties of merchantability and fitness for a particular purpose. Recipients acknowledge and agree that SAS Institute shall not be liable for any damages whatsoever arising out of their use of this material. In addition, SAS Institute will provide no support for the materials contained herein.

This example demonstrates the differences between using lines and patterns to represent contour levels.

Type:	Sample
Topic:	SAS Reference ==> Procedures ==> GCONTOUR

Date Modified:	2005-08-27 03:03:19
Date Created:	2005-05-23 14:13:18

Operating System and Release Information

Product Family	Product	Host	SAS Release
			Starting	Ending
SAS System	SAS/GRAPH	z/OS	9.1 TS1M0
		Microsoft® Windows® for 64-Bit Itanium-based Systems	9.1 TS1M0
		Microsoft Windows Server 2003 Datacenter 64-bit Edition	9.1 TS1M0
		Microsoft Windows Server 2003 Enterprise 64-bit Edition	9.1 TS1M0
		Microsoft Windows 2000 Advanced Server	9.1 TS1M0
		Microsoft Windows 2000 Datacenter Server	9.1 TS1M0
		Microsoft Windows 2000 Server	9.1 TS1M0
		Microsoft Windows 2000 Professional	9.1 TS1M0
		Microsoft Windows NT Workstation	9.1 TS1M0
		Microsoft Windows Server 2003 Datacenter Edition	9.1 TS1M0
		Microsoft Windows Server 2003 Enterprise Edition	9.1 TS1M0
		Microsoft Windows Server 2003 Standard Edition	9.1 TS1M0
		Microsoft Windows XP Professional	9.1 TS1M0
		64-bit Enabled AIX	9.1 TS1M0
		64-bit Enabled HP-UX	9.1 TS1M0
		64-bit Enabled Solaris	9.1 TS1M0
		HP-UX IPF	9.1 TS1M0
		Linux	9.1 TS1M0
		OpenVMS Alpha	9.1 TS1M0
		Tru64 UNIX	9.1 TS1M0