gaotao0727 发表于 2016-8-23 15:05 
你好,请教一个问题:call missing(p)这个语句为什么除了第二条观测其他都变成缺失的了呢?missing函数不 ...
这不是missing函数,而是一个call routine;
from SAS HELP:
The CALL MISSING routine assigns an ordinary numeric missing value (.) to each numeric variable in the argument list.
The MISSING function checks whether the argument has a missing value but does not change the value of the argument.