統計散記-Vivian 經驗分享

data a;
do i=1 to 10; *用do...end循環10次，注意end前需有output指令，將i寫入數據集a;
y=i*2;
output;
end;
run;

proc print;run;

data a;
do i=2 to 20 by 2; * by 2: 以2為間隔;
output;
end;
run;

proc print;run;

data a;
 do i=1 to 100;
   HT=round(145+(190-145)*rand('uniform'));*四捨五入取整數;
   WT=round((40+(100-40)*rand('uniform')), 0.1);*取至小數後1位;
 output;
 end;

data a1;set a;
   BMI=WT/(HT/100)**0.5;* "**"表示次方，如: A**2,代表A平方;
run;
proc print data=a1(obs=5);*只列印前五筆資料;
run;