Question

有人对以下内容有好的解决办法吗？我需要总结一下观察值，并在“总计”的总和达到1000时取“ dist”的值；

data DATA  ;
input ID $ dist total ;
cards ;
A  1.5  600
A  2.5  500
A  3.0  200
B  2.8  1050
B  6.8  100
C  0.8  900
C  1.2  150
C  3.5  300

; run;



Desired output with the third column being optional:
A 2.5 1100
B 2.8 1050
C 1.2 1050

Answer 1

通过处理并保留累计总数和输出标志：

data want ;
  set have ;
  by ID ; /* assumes your data is sorted already by ID */
  retain cumtot _out . ;
  if first.ID then call missing(cumtot,_out) ;

  cumtot + total ;

  if cumtot >= 1000 and not _out then do ;
    _out = 1 ; /*   set flag so we don't output further records for this ID */
    output ;
  end ;

  drop _: ;
run ;

我还要避免将数据集命名为“数据”。

SAS：按类别的条件总和

1 个答案: