topic Re: Group scatter plots in proc GPLOT in SAS Procedures

Group scatter plots in proc GPLOT

iiibbb — Thu, 07 Nov 2019 15:29:00 GMT

In proc gplot,

Is there a way to overlay scatter plots for multiple groups using different symbols when the data is arranged below? Currently, the only way I know how to do this is to create a separate column of Ys for the A and B group... but if I have more than 2 groups this becomes tedious.

Thanks

group	X	Y
A	1	2.0
A	1	2.2
A	2	3.1
A	2	3.3
A	3	4.2
A	3	4.6
A	4	3.9
A	4	4.3
A	5	6.1
A	5	5.9
A	6	7.5
A	6	7.3
B	1.1	0.5
B	1.1	0.5
B	2.1	1.4
B	2.1	1.5
B	3.1	2.9
B	3.1	3.2
B	4.1	3.6
B	4.1	3.9
B	5.1	6.9
B	5.1	6.7
B	6.1	10.2
B	6.1	9.9

Re: Group scatter plots in proc GPLOT

PeterClemmensen — Thu, 07 Nov 2019 15:41:00 GMT

I suggest you use PROC SGPLOT instead and do something like this

data have;
input group $ X Y;
datalines;
A 1 2.0
A 1 2.2
A 2 3.1
A 2 3.3
A 3 4.2
A 3 4.6
A 4 3.9
A 4 4.3
A 5 6.1
A 5 5.9
A 6 7.5
A 6 7.3
B 1.1 0.5
B 1.1 0.5
B 2.1 1.4
B 2.1 1.5
B 3.1 2.9
B 3.1 3.2
B 4.1 3.6
B 4.1 3.9
B 5.1 6.9
B 5.1 6.7
B 6.1 10.2
B 6.1 9.9
;

ods graphics / AttrPriority=None;
proc sgplot data=have;
   styleattrs datasymbols=(circlefilled squarefilled starfilled)
              datacontrastcolors=(red green red);
   scatter x=x y=y / group=group;
run;

Result:

Re: Group scatter plots in proc GPLOT

iiibbb — Thu, 07 Nov 2019 15:53:46 GMT

That's even better. Great.

I also figured out the answer to my question.

proc gplot;

plot Y*X=group;
run;

Re: Group scatter plots in proc GPLOT

PeterClemmensen — Thu, 07 Nov 2019 15:55:50 GMT

glad you found your answer. In my book, PROC SGPLOT is more intuitive 🙂

Please remember to close the thread.

Re: Group scatter plots in proc GPLOT

ballardw — Thu, 07 Nov 2019 15:58:33 GMT

@iiibbb wrote:

That's even better. Great.

I also figured out the answer to my question.

proc gplot;

plot Y*X=group;
run;

You would provide a different symbol statement for each "group" value to control marker type, size, color, line color, type and width if you don't like the defaults.

Re: Group scatter plots in proc GPLOT

iiibbb — Thu, 07 Nov 2019 15:59:38 GMT

Follow up question. How do you set the axis ranges in sgplot?

Re: Group scatter plots in proc GPLOT

PeterClemmensen — Thu, 07 Nov 2019 16:01:31 GMT

Like this

ods graphics / AttrPriority=None;
proc sgplot data=have;
   styleattrs datasymbols=(circlefilled squarefilled starfilled)
              datacontrastcolors=(red green red);
   scatter x=x y=y / group=group;
   xaxis min=0 max=10;
   yaxis min=0 max=10;
run;