我试图运行一些代码,这些代码有望连接数月或数年的数据。我试图找出一个字段填充值的时间。即在我的数据集中有字段XYZ,它在2016年11月填充了值A.如果我从1月到12月运行我的代码,我想要一个新字段填充SAS在该字段中遇到非空值的日期。
这是我的代码:
options mprint symbolgen source mlogic merror syntaxcheck ;
%macro append_monthly(iStart_date=, iEnd_date=);
%local tmp_date i;
%let tmp_date = %sysfunc(intnx(month,&iStart_date,0,beginning)) ;
%do %while (&tmp_date le &iEnd_date);
%let i = %sysfunc(sum(&tmp_date),yymmn4.);
%put &i.;
%let tmp_date = %sysfunc(intnx(month,&tmp_date,1,beginning)) ;
libname note "my.qualifiers.fords.note&i." disp=shr;
data new ;
set note.file ;
%if ln_note_crbur_date_delinq ne '' %then spc_cmt_date = &i.;
run;
%end;
%mend;
%append_monthly(iStart_date=%sysfunc(mdy(5,1,2016)), iEnd_date=%sysfunc(mdy(10,1,2016)) );
LIBNAME _ALL_ CLEAR;
以下是包含错误的日志示例:
SYMBOLGEN: Macro variable TMP_DATE resolves to 20606
SYMBOLGEN: Macro variable IEND_DATE resolves to 20728
MLOGIC(APPEND_MONTHLY): %DO %WHILE(&tmp_date le &iEnd_date) condition is TRUE; loop will iterate again.
MLOGIC(APPEND_MONTHLY): %LET (variable name is I)
SYMBOLGEN: Macro variable TMP_DATE resolves to 20606
MLOGIC(APPEND_MONTHLY): %PUT &i.
SYMBOLGEN: Macro variable I resolves to 1606
1606
MLOGIC(APPEND_MONTHLY): %LET (variable name is TMP_DATE)
SYMBOLGEN: Macro variable TMP_DATE resolves to 20606
MPRINT(APPEND_MONTHLY): spc_cmt_date = 1605 run;
SYMBOLGEN: Macro variable I resolves to 1606
MPRINT(APPEND_MONTHLY): libname note "my.qualifiers.fords.note1606" disp=shr;
ERROR: Unable to clear or re-assign the library NOTE because it is still in use.
ERROR: Error in the LIBNAME statement.
NOTE: The SAS System stopped processing this step because of errors.
WARNING: The data set WORK.NEW may be incomplete. When this step was stopped there were 0 observations and 622 variables.
WARNING: Data set WORK.NEW was not replaced because this step was stopped.
NOTE: The DATA statement used 0.01 CPU seconds and 49483K.
NOTE: The address space has used a maximum of 4292K below the line and 240388K above the line.
我无法弄清楚为什么这不起作用。也许这可以使用Proc append。
基本上,我只希望我的输出带有一个字段,当字段ln_note_crbur_date_delinq为非空时,该字段以YYMM的形式返回日期。
非常感谢任何帮助
答案 0 :(得分:1)
我猜你的错误原因是在下一个libname语句尝试重新分配之前,源文件中没有清除句柄。
一个简单的解决方法是每次使用不同的别名(libref),如下所示:
libname note&i "my.qualifiers.fords.note&i." disp=shr;
然后像这样调整数据步骤:
data new ;
set note&i..file ;
下一部分似乎是宏逻辑和数据步骤之间的混淆。只需删除%
符号,如下所示:
if ln_note_crbur_date_delinq ne '' then spc_cmt_date = &i.;
最后,在proc append
之前添加%end
,如下所示:
proc append base=work.final data=new; run;
如果work.final
不存在,则会以与new
相同的格式创建。
修改强>
在评论中讨论后,这是一个修订的方法:
%macro append_monthly(iStart_date=, iEnd_date=);
%local tmp_date i set_statement;
%let tmp_date = %sysfunc(intnx(month,&iStart_date,0,beginning)) ;
%do %while (&tmp_date le &iEnd_date);
%let i = %sysfunc(sum(&tmp_date),yymmn4.);
%let tmp_date = %sysfunc(intnx(month,&tmp_date,1,beginning)) ;
%let set_statement=&set_statement &i..file;
libname note&i "my.qualifiers.fords.note&i." disp=shr;
%end;
data new ;
set &set_statement;
if ln_note_crbur_date_delinq ne '' then spc_cmt_date = &i.;
run;
%mend;
%append_monthly(iStart_date=%sysfunc(mdy(5,1,2016)), iEnd_date=%sysfunc(mdy(10,1,2016)) );
LIBNAME _ALL_ CLEAR;