topic Re: SGPLOT - graph shape square in Graphics Programming

SGPLOT - graph shape square

Lou523 — Thu, 13 May 2010 17:51:43 GMT

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

Re: SGPLOT - graph shape square

GraphGuy — Thu, 13 May 2010 18:47:48 GMT

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

Re: SGPLOT - graph shape square

DanH_sas — Thu, 13 May 2010 19:41:43 GMT

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]

Re: SGPLOT - graph shape square

Lou523 — Tue, 18 May 2010 17:52:16 GMT

Thanks - I'll give this a try. Lou

Re: SGPLOT - graph shape square

Lou523 — Tue, 18 May 2010 17:52:44 GMT

Thanks - I'll give this a try. Lou