topic Re: proc gmap in SAS Programming

proc gmap

SASdevAnneMarie — Wed, 18 Feb 2026 14:56:53 GMT

Hello Experts,

I'm using the proc gmap to display the map of France by department, but the result does not have the Corse departments.

The id for this department is "2A" and "2B".

Do you know, please, how to display the name of departments?

Thank you for your help!

Re: proc gmap

MarciaS — Wed, 18 Feb 2026 16:01:10 GMT

Hi @SASdevAnneMarie

You can use the annotate facility to place the department names on the map.

The %maplabel annotate macro will calculate the center of the map area and create an annotate data set to place the label on the map.

For example:

%annomac;
%maplabel(mapsgfk.france,mapsgfk.france_attr,labels,idname,id); /* the text for label is in the IDNAME variable */
proc gmap data=mapsgfk.france_attr map=mapsgfk.france;
  where id1='FR-94'; /* subset for Corse region for demo */
  by id;
  id id;
  choro id / discrete  anno=labels;
run;
quit;

Regards,
Marcia

Re: proc gmap

Tom — Wed, 18 Feb 2026 16:30:00 GMT

One of the nice things about the way the SAS macro language works is that even when you have defined your macro to allow the parameter values to be passed by their position in the macro call you can still pass the values using the parameter names.

This makes for code that is more self documenting.

%maplabel
(mapds=mapsgfk.france
,attrds=mapsgfk.france_attr
,outds=labels
,textvar=idname
,ids=id
,font=swiss
,color=black
,size=2
,hsys=3
,segonly=
);

Re: proc gmap

SASdevAnneMarie — Wed, 18 Feb 2026 16:37:51 GMT

Thank you Marcia,

I have an issue with ID column in my data. I need to recod it.

What represents the id and id1 in mapsgfk.france ?

I joined my data.

Thank you for your help!

Re: proc gmap

MarciaS — Wed, 18 Feb 2026 17:27:43 GMT

Hi @SASdevAnneMarie

In your TEST data set, the ID variable appears to correspond to the ID variable in the MAPSGFK.FRANCE data set except for the observations for the Corse region.

The TEST data set has 3 observations with ID='FR-94'.

Obs	id	nom_departement	Valeur
98	FR-94	Corse-du-Sud	7.6895
99	FR-94	Haute-Corse	6.4195
100	FR-94	Val-de-Marne	18.9159

For observations 98 and 99, the ID value should be FR-2A and FR-2B, respectively, and their region code (ID1 in MAPSGFK.FRANCE) would be FR-94.

Observation 100 has the correct Deparment code FR-94.

Hope that helps.

Marcia

Re: proc gmap

Ksharp — Thu, 19 Feb 2026 03:45:05 GMT

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

Re: proc gmap

Ksharp — Thu, 19 Feb 2026 03:54:03 GMT

And Robert.Allision blog:
https://blogs.sas.com/content/graphicallyspeaking/2021/10/22/how-to-mislabel-a-map/

https://blogs.sas.com/content/graphicallyspeaking/2020/10/29/coronavirus-per-million-per-100k-or-percent/

Re: proc gmap

SASdevAnneMarie — Thu, 19 Feb 2026 09:01:34 GMT

I have an issue with this ID1, its seems missing in mapsgfk.france.

nom_departement	code_region	ID1	ID
Guadeloupe	1	FR-.	FR-97
Martinique	2	FR-.	FR-97
Guyane	3	FR-.	FR-97
La Réunion	4	FR-.	FR-97

Re: proc gmap

SASdevAnneMarie — Thu, 19 Feb 2026 15:57:22 GMT

I make the map, thank you. I can not display only the Overseas departments.

Re: proc gmap

SASdevAnneMarie — Sun, 15 Mar 2026 14:22:05 GMT

Hello Tom,
Is it possible to reduce the police? I have the same huge labels even with size=0.05, hsys=0.05.

Thank you.