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05-13-2010 01:51 PM

How do I get SAS to print an ellipse plot as square, size n by n? Regardless of axis range for either x or y, each axis should have the same length (ie. 5") on the figure generated / printed. SAS ellipse plots printed in landscape are NOT the same (different angle of rotation, major and minor axis are not perpendicular, etc) as ellipse plots in a square. SAS ellipse plots in landscape are not correct - only distortions of an ellipse plot in a square.

proc sgplot data=WORK;

scatter x=afp y=ue3;

ellipse x=afp y=ue3 /alpha=0.05;

run;

Thanks,

Lou

proc sgplot data=WORK;

scatter x=afp y=ue3;

ellipse x=afp y=ue3 /alpha=0.05;

run;

Thanks,

Lou

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05-13-2010 02:47 PM

Hopefully one of the sgplot experts can give you an answer.

But, if you can't find a way to do it in sgplot, you might give gplot a try - you can specify a length (in inches) in the axis statements, and it will generally try to honor that (thereby giving you a way to keep the axes & your plot proportional).

As an example, below is the code for a "spiral" time-series plot - I wanted to keep the 2 axes proportional (whether title statements got added, etc) so that the spiral would not look "squished".

-----

http://robslink.com/SAS/democd46/spiral_info.htm

Message was edited by: Robert Allison @ SAS Message was edited by: Robert Allison @ SAS

But, if you can't find a way to do it in sgplot, you might give gplot a try - you can specify a length (in inches) in the axis statements, and it will generally try to honor that (thereby giving you a way to keep the axes & your plot proportional).

As an example, below is the code for a "spiral" time-series plot - I wanted to keep the 2 axes proportional (whether title statements got added, etc) so that the spiral would not look "squished".

-----

http://robslink.com/SAS/democd46/spiral_info.htm

Message was edited by: Robert Allison @ SAS Message was edited by: Robert Allison @ SAS

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05-18-2010 01:52 PM

Thanks - I'll give this a try. Lou

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05-13-2010 03:41 PM

Currently, the SG procedures do not support equated axes but the Graph Template Language (GTL) does. Here is a very simple example to get you started. Details for the template language can be found in the documentation.

Thanks!

Dan

[pre]

proc template;

define statgraph square;

begingraph;

layout overlayequated / equatetype=square;

scatterplot x=weight y=height;

ellipse x=weight y=height / alpha=0.05 type=predicted;

endlayout;

endgraph;

end;

run;

proc sgrender data=sashelp.class template=square; run;

[/pre]

Thanks!

Dan

[pre]

proc template;

define statgraph square;

begingraph;

layout overlayequated / equatetype=square;

scatterplot x=weight y=height;

ellipse x=weight y=height / alpha=0.05 type=predicted;

endlayout;

endgraph;

end;

run;

proc sgrender data=sashelp.class template=square; run;

[/pre]

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05-18-2010 01:52 PM

Thanks - I'll give this a try. Lou