Please refrain from posting HTML. The results can be incomprehensible: On 2009.12.03 13:52:09, John Filben wrote: > Can R support data manipulation programming that is available in the SAS > datastep??? Specifically, can R support the following: > -?????????????????? Read multiple dataset one record at a time and compare > values from each; then base on if-then logic write to multiple output files > -?????????????????? Load a lookup table and then process a different file; > based on if-then logic, access and lookup values in the table > -?????????????????? Support modular ???gosub???programming > -?????????????????? Sort files > -?????????????????? Date math and conversions > -?????????????????? Would it be able to support the following type of logic: > o???? Start > ???? Read Record from File 1 > ???? Read Record from File 2 > ???? Match > ?????????????????? If Key 1 <> Key 2 and Key 1 < Key 2, Write to output file A > ?????????????????? If Key 1 = Key 2, Write to output file B > ?????????????????? If Key 1 <> Key 2 and Key 1 > Key 2, Write to output file > C???? Goto Start until File 1 Done > ??John Filben > Cell Phone - 773.401.2822 > Email - johnfil...@yahoo.com > > [[alternative HTML version deleted]]
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