Thank you very much. When I ran the following code, it gave me an error. Could you please help me with that. CODE: proc iml; d = 0.4; call farmasim(yt, d) n=10 sigma=2 seed=123457; create MyData var {yt}; /** create data set **/ append; /** write data in vectors **/ close MyData; /** close the data set **/ proc print data=MyData; run; LIBNAME dat "c:\sas\data\"; PROC EXPORT DATA=MyData; OUTFILE="F:\data\test.csv" DBMS=csv REPLACE; RUN; ERROR: 788 LIBNAME dat "c:\sas\data\"; NOTE: Library DAT does not exist. 789 790 PROC EXPORT DATA=MyData; ERROR: FILE= or TABLE= is required and must be specified. NOTE: The SAS System stopped processing this step because of errors. Thanks
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