If-then-else匹配问题

Question

运行此代码时出现错误

  

没有匹配的if-then子句

if x=1 then do;
if diff>12 and (8<=p<=12 or 3<=p<5) then g=1;
else if (1<=p<=2) then g=2;
else g=3;
end;

请帮助我理解我的错误？

Answer 1

我复制了您的代码并运行了以下内容：

data test;
x = 1;
diff = 14;
p=14;

if x=1 then do;
   if diff>12 and (8<=p<=12 or 3<=p<5) then g=1;
   else if (1<=p<=2) then g=2;
   else g=3;
end;
run;

似乎有什么问题？确保定义了x，diff和p。