使用循环在SPSS中创建交互

Question

以下循环无法正确创建任何交互项（即彼此相乘的新变量）。我不确定如何正确指定x(#j + #i)，所以也许这就是搞乱的事情。

DATA LIST LIST /        A1L1    A1L2    A1L3    P1  P2  P3  P4  P5  P6  P7  P8  P9  P10.
BEGIN DATA                                                      
1   0   0   1   0   0   0   0   0   0   0   0   0       
1   0   0   0   1   0   0   0   0   0   0   0   0       
0   1   0   0   0   1   0   0   0   0   0   0   0       
0   1   0   0   0   0   1   0   0   0   0   0   0       
0   0   1   0   0   0   0   1   0   0   0   0   0       
0   0   1   0   0   0   0   0   1   0   0   0   0       
-1  -1  -1  0   0   0   0   0   0   1   0   0   0       
-1  -1  -1  0   0   0   0   0   0   0   1   0   0       
-1  -1  -1  0   0   0   0   0   0   0   0   0   1       
END DATA.                                                       
LIST.                                                       

vector A1L1P    A1L2P   A1L3P  (10).
vector x =  A1L1P1 to A1L3P10.
VECTOR ASC = P1 to P10.
VECTOR EcLvl = A1L1 to A1L3.
LOOP #j = 1 to 3.
    LOOP #i = 1 to 10.
        COMPUTE x(#j + #i) = (ASC(#i)  *  EcLvl(#j)).
    END LOOP.
END LOOP.
EXECUTE.

Answer 1

而不是

    COMPUTE x(#j + #i) = (ASC(#i)  *  EcLvl(#j)).

我想你想要

    COMPUTE x(10*(#j-1) + #i) = (ASC(#i)  *  EcLvl(#j)).