PROC DATASETS 宏变量错误

Question

我能够将宏变量解析为我期望的名称。但是 proc 数据集中的 delete 语句没有得到识别。如何让它发挥作用？

PROC DATASETS LIB=WORK NODETAILS NOLIST;
    DELETE  &INPUT._mi  &INPUT._lc ;
RUN;

MPRINT(GET_true_value):   PROC DATASETS LIB=WORK NODETAILS NOLIST;
NOTE: Line generated by the macro variable "INPUT".
108          work.true_value_mi
             __________________
             22
             201
MPRINT(GET_true_value):   DELETE work.true_value_mi work.true_value_lc ;
NOTE: Enter RUN; to continue or QUIT; to end the procedure.
MPRINT(GET_true_value):   RUN;

ERROR 22-322: Expecting a name.  

ERROR 201-322: The option is not recognized and will be ignored.

NOTE: Statements not processed because of errors noted above.
109

Answer 1

看起来问题在于写入的删除语句包含库名称。这不是必需的（并且会引发错误），因为库是在 PROC DATASETS 语句中指定的。

您希望您的宏变量解析为：

PROC DATASETS LIB=WORK NODETAILS NOLIST;
    DELETE true_value_mi ;
RUN;

PROC DATASETS 宏变量错误

PROC DATASETS macro variable error

sas

sas-macro