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The DATASOURCE Procedure |
proc datasource filetype=dribasic infile=citifile interval=month out=dataset; run;
When the INTERVAL= option is not given, the default frequency defined for the FILETYPE= type file is used. For example, the statements in the previous section extract yearly series since INTERVAL=YEAR is the default frequency for DRI's Basic Economic Data files.
To extract data for several frequencies, you need to execute the DATASOURCE procedure once for each frequency.
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