SAS每年和每个其他变量的变量的计数

Question

我没有得到像我期望的结果。

这是我的数据集：

data have0; 
infile cards truncover expandtabs; 
input MC $ ET $ Date :date9. Time :time. PMC $ PXMC $ Site $ Dia MV SF; 
format date date8. Time HHMM.; 
cards; 
US000409 Meas 12Oct2015 17:26 7101 Et1 1 . 2780462.00000 1 
US000409 Meas 12Nov2016 17:33 7101 Et1 1 861.26 2780462.00000 1 
US000409 Lath 12Oct2015 17:33 7102 Et1 1 861.6 2780462.00000 1 
US01036 Meas 12Nov2016 17:26 7101 Et1 2 . 522860.00000 1 
US01036 Lath 13Oct2016 17:33 7202 Et1 2 866.68 522860.00000 1 
US01036 Meas 13Oct2015 17:33 7101 Et1 2 867.36 522860.00000 1 
US02044 Meas 13Nov2016 17:26 7202 Et1 1 . 569298.00000 1 
US02044 Lath 13Nov2015 17:33 7202 Et1 1 865.32 569298.00000 1 
US02044 Meas 14Nov2016 17:33 7202 Et1 2 865.68 569298.00000 1 
US318 Lath 14Nov2016 17:26 7101 Et2 2 . 2630856.00000 1 
US318 Meas 14Nov2016 17:33 7202 Et2 3 863.26 2630856.00000 1 
US318 Lath 14Nov2016 17:33 7202 Et2 3 863.94 2630856.00000 1 
US000409 Meas 15Nov2016 21:56 7202 Et2 3 860.98 2780462.00000 1 
US000409 Meas 15Nov2016 21:56 7203 Et2 4 861.5 2780462.00000 1 
US01036 Lath 16Nov2016 21:56 7101 Et2 4 866.64 522860.00000 1 
US01036 Meas 16Nov2016 21:56 7202 Et2 4 867.34 522860.00000 1 
US02044 Lath 17Nov2016 21:56 7203 Et2 1 865.3 569298.00000 1 
US02044 Meas 17Nov2016 21:56 7204 Et2 3 865.68 569298.00000 1 
US318 Lath 17Nov2016 21:56 7204 Et2 2 863.24 2630856.00000 1 
; 
run; 

我所试图做的是：

PROC SQL; 
    CREATE TABLE MC_ET AS 
    SELECT t1.MC, 
      case t1.ET 
       when "Lath" then (COUNT(t1.ET)) AS COUNT_of_ET_Lath 
       when "Meas" then (COUNT(t1.ET)) AS COUNT_of_ET_Meas 
      end, 
      (year(t1.Date)) AS Year 
     FROM have0 t1 
     GROUP BY t1.MC, (CALCULATED Year); 
QUIT; 

我期待得到的结果是这样的位置：

MC Year Count_Lath Count_Meas 
US000409 2015 1 1 
US000409 2016 1 3 
US01036 2015 0 1 
US01036 2016 2 2 
US02044 2015 1 0 
US02044 2016 1 3 
US318 2016 3 1 

我不知道在上面的代码中如何使用case。我认为我犯了一些错误。请帮助纠正。

谢谢。

Answer 1

但是，如果你想做两个这样的计数，我有点迷失于你的解释中，你需要将它们放在单独的列中。在SQL情况下作为一个开关，它的输出总是只有一列。

但是我不使用SAS，我使用Oracle，所以请谨慎行事。在Oracle中，字符串是用引号括起来的而不是用引号括起来的，也许你的情况也是如此。

我会建议去尝试，而不是你的情况是：

sum(case when t1.ET='Lath' then 1 else 0 end) as count_lath, 
sum(case when t1.ET='Meas' then 1 else 0 end) as count_meas 

分组你应该确定。

试试这个，希望它有帮助。

Answer 2

是的，我明白了...谢谢... @Emil

PROC SQL; 
    CREATE TABLE MC_ET AS 
    SELECT t1.MC, (year(t1.Date)) AS Year, 
       sum(case when t1.ET='Lath' then 1 else 0 end) as Count_of_Lath, 
       sum(case when t1.ET='Meas' then 1 else 0 end) as count_of_Meas 
     FROM have t1 
     GROUP BY t1.MC, (CALCULATED Year) 
; 
QUIT;