第二章 SAS语言基础(1)(7)

2.1

data DABC;

do TYPE = 'A','B','C';

do GROUP=1 to 3;

input Y @@; output;

end;

end;

cards;

31.5 29.8 32.4 40.1 41.1 42.0 50.1 51.2 50.8 ; Run; 2.2

data DAC;

set DABC; if TYPE='B';

run;