syntax-error - SPSS : Adding two variables using DO REPEAT

Question

我是SPSS的新手，它是统计 Realm 的专家，也是本论坛的新手。我正在与我的硕士学位一起进行研究，遇到了一些问题并寻求帮助。是的，我可以聘请顾问，但是请查看学习过程的这一部分，并希望了解我是否无法掌握这一点-当然需要您的帮助。

我想添加:q1和q51 q2和q52 q3和q53等....到q50和q100

当前新的变量名是TOTAL1到TOTAL50，但可以是任何值。 Q1至q100存在且连续TOTAL1至TOTAL 50存在且连续

我试过了:

do repeat x = q1 to q50 
         /y = q51 to q100 
         /z = TOTAL1 to TOTAL50. 
COMPUTE z = x + y.
end repeat . 
EXECUTE.

但是在输出中得到以下内容:

Error # 4502 in column 11. Text: = An equals sign appears in a variable or value list where it is not expected. It will be ignored. Execution of this command stops.

Error # 4508 in column 15. Text: + Unrecognized text appears on the DO REPEAT command. It will be ignored. EXECUTE. do repeat x = q1 to q50 / y = q51 to q100 / z = TOTAL1 to TOTAL50 COMPUTE z = x + y end repeat .

Error # 4502 in column 11. Text: = An equals sign appears in a variable or value list where it is not expected. It will be ignored. Execution of this command stops.

Error # 4508 in column 15. Text: + Unrecognized text appears on the DO REPEAT command. It will be ignored. EXECUTE.

这是最好的方法吗？谁能发现语法错误？

我正在使用SPSS v.20。

Answer 1

尝试这个

do repeat x = q1 to q50 
         /y = q51 to q100 
         /z = TOTAL1 to TOTAL50. 
- COMPUTE z = x + y.  /*i just added a minus sign before the compute./
end repeat . 
EXECUTE.