PROC GMAP color change by level

[dac_js]

I am using PROC GMAP for the first time. I need help with changing the way the legends (the 3 levels in the example) are shown in the map.

For example when I am creating a sample US state map in the following way SAS is using three separate levels of colors. Changing the LEVELS = option I can get more levels but the same issue exists. Is there any way to show the density_2020 by different state  as a range of 0 to 10,000. (The map should not change only I am trying to show the legends in a different way)

proc gmap data=sashelp.us_data map=mapssas.us;
id state;
choro density_2010 / levels=3 legend=legend1;
run;
quit;

[PaigeMiller]

Use the MIDPOINTS and RANGE option

proc gmap data=sashelp.us_data map=mapssas.us;
id state;
choro density_2010 / levels=3 midpoints=100 200 500 range;
run;
quit;

[dac_js]

Thank you very much for your help! Is it possible to get the legend in a format like the attached map?  

[Ksharp · Accepted solution]

Check @Rick_SAS blog :

https://blogs.sas.com/content/iml/2015/11/18/create-a-map-with-proc-sgplot.html

data US;
   set maps.US;
  * where StateCode NOT IN ("AK", "HI", "PR");
   by State Segment;
   if first.Segment then PolyID+1;    /* create ID variable for polygons */
run;

 
title "US States with Some Large Cities";
proc sgplot data=us ;
   polygon x=x y=y ID=PolyID / fill outline group=StateCode colorresponse=PolyID colormodel=(verylightblue verydarkblue);
   xaxis display=none;
   yaxis display=none;
run;

[dac_js]

Thank you very much!

[ballardw]

Please read your initial post carefully. You say "the same issue exists" but do not state what the "issue" is.

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@dac_js wrote:

I am using PROC GMAP for the first time. I need help with changing the way the legends (the 3 levels in the example) are shown in the map.

For example when I am creating a sample US state map in the following way SAS is using three separate levels of colors. Changing the LEVELS = option I can get more levels but the same issue exists. Is there any way to show the density_2020 by different state  as a range of 0 to 10,000. (The map should not change only I am trying to show the legends in a different way)

proc gmap data=sashelp.us_data map=mapssas.us;
id state;
choro density_2010 / levels=3 legend=legend1;
run;
quit;

---

[dac_js]

I was looking for a way to get the legend as a scale instead of separate data points. I should have clarified that.

Thank you for the help!