Excel中SUMPRODUCT在SAS

Question

表1

Age  B C D E F G H 
0-10 5 6 8 9 0 1 1 
10-20 4 5 9 7 1 4 5 
20-30 5 6 5 4 2 5 8 
0-10 0 4 0 5 8 0 7 

表2

Age  A1 B1 C1 D1 
0-10  0.1 0.9 0.2 
10-20 0.5 0.6 0.7 

我想提取

SUMPRODUCT(Table1(G:H),Table2(B1:C1)) 

與條件IF Table1.Age = Table2.Age。

輸出表應該像

AGE SUMPRODUCT 
0-10 0.8 
10-20 0.70 

Answer 1

你需要兩個數據集合併到一起，然後計算出產品的總和。

data want; 
merge table1(in=a) table2(in=b); 
by age; 
if a and b; 
newvar = sum(g*b1, h*c1); 
run; 

你可以在SQL連接或散列表查找中做同樣的事情。

陣列：

data want; 
merge table1(in=a) table2(in=b); 
by age; 
if a and b; 
array avars[20] <list of a vars>; 
array bvars[20] <list of b vars>; 
do _t = 1 to dim(avars); 
    newvar = sum(newvar,avars[_t]*bvars[_t]); 
end; 
run;