topic Re: Controlling Marker Size Individually in Graphics Programming

Controlling Marker Size Individually

Leo9 — Wed, 20 Jul 2016 16:38:09 GMT

Is it possible to control marker size by timepoints ? I want the marker size little bit bigger for the last visit for each patient.

I am using PROC SGPLOT and doing line plot of lab values by visit.

Re: Controlling Marker Size Individually

Jay54 — Wed, 20 Jul 2016 17:06:56 GMT

GTL SCATTERPLOT has a SIZERESPONSE=num-variable option, so you can size each marker by the value in this column. See GTL documentation. Alternatively, you can use the SGPLOT BUBBLE plot to draw circular markers with size variable.

proc sgplot data=sashelp.class;
bubble x=height y=weight size=age;
run;

Re: Controlling Marker Size Individually

Leo9 — Wed, 20 Jul 2016 17:11:26 GMT

Thanks. I want to control size of only one last marker (for last visit). Is there any option in SGPLOT to do that ?

Re: Controlling Marker Size Individually

DanH_sas — Wed, 20 Jul 2016 17:22:40 GMT

There is a way to do this using discrete attribute maps. To give you a detailed solution, I would need to see your SGPLOT code.

Re: Controlling Marker Size Individually

Jay54 — Wed, 20 Jul 2016 17:25:55 GMT

Add a column to your data in which all the values are same (say 1) and the value for the last visit is larger (say 2). use this column with the SIZE= role. You can also use the BRADIUSMIN and BRADIUSMAX options to control the sizing.