我想要从全样本(test.file)中个别求的滚动样本数据tempfile1,tempfile2,...tempfile476,
export to out1.csv out2.csv.....out476.csv How to correct the error in the log file ?
Sincerly !
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SAS Code Fragments

Macro to Compute a "rolling" standard deviation Log file
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14         GOPTIONS ACCESSIBLE;
15         %macro rollspl;
16           %do firstobs = 1 %to 476;
17             %let lastobs = %eval( &firstobs + 24)
18          data tempfile.&firstobs;
19             set work.test(firstobs=&firstobs obs=&lastobs);
20          run;
21             proc export data=tempfile.&firstobs
22               outfile="c:\temp\out.&firstobs.csv"
23            dbms=csv
24            replace;
25            run;
26           %end;
27         %mend rollspl;
28         %rollspl
ERROR: Libname TEMPFILE is not assigned.
ERROR: Export unsuccessful.  See SAS Log for details.
NOTE: The SAS System stopped processing this step because of errors.
NOTE: PROCEDURE EXPORT used (Total process time):
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