filename car url 'https://webpages.uidaho.edu/~renaes/Data/mtcars.csv';
title 'mtcars';
data mtcars;
infile car dsd missover firstobs=2;
input mpg cyl disp hp drat wt qsec am gear carb;
run;
proc print data=mtcars;
run;
title 'sorted by mpg';
proc sort data=mtcars
          out=sortcars;
	by mpg;
run;
proc print data=sortcars;
run;
title 'sorted by mpg,cyl';
proc sort data=mtcars
          out=sortcars;
	by mpg cyl;
run;
proc print data=sortcars;
run;
title 'sorted by mpg,-cyl';
proc sort data=mtcars
          out=sortcars;
	by mpg decending cyl;
run;
proc print data=sortcars;
run;