The document describes the PROC PLOT procedure in SAS for creating scatter plots. It provides the basic syntax for PROC PLOT, shows how to use BY variables to create separate plots, and gives examples of using options like BOX, VAXIS, and HAXIS to customize the axes.

1. Plot procedure
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2. Syntax
PROC PLOT <option(s)>;
BY <DESCENDING> variables;
PLOT plot-request(s) </ option(s)>;
RUN;

3. Syntax
PROC PLOT <option(s)>;
BY <DESCENDING> variables;
PLOT plot-request(s) </ option(s)>;
RUN;

4. Example
data example1; proc plot;
do i=1 to 200; title 'this is an example';
x=10*rannor(100); title2 'x vs y';
y=x+10*rannor(3); plot x*y;
if i<100 then g=0; by g;
else g=1; run;
output;
end;
drop i;
;

6. Options for plot
proc plot;
title 'this is an example';
title2 'x vs y';
plot x*y;
plot x*y/box;
plot x*y/box vaxis=0 5 10 15 20 haxis=by 3;
run;

7. Options for plot: box
proc plot;
title 'this is an example';
title2 'x vs y';
plot x*y;
plot x*y/box;
plot x*y/box vaxis=0 5 10 15 20 haxis=by 3;
run;

8. Options for plot: axis
proc plot;
title 'this is an example';
title2 'x vs y';
plot x*y;
plot x*y/box;
plot x*y/box vaxis=0 5 10 15 20 haxis=by 3;
run;