1 FREQ_$

  Format:    

      FREQ  [input-file-spec] [command-file-spec] [report-file-spec]

  FREQ invokes the WESTAT FREQUENCY UTILITY, which calculates
 frequencies of columns in raw data files.  For up to 100 fields
 in a record FREQ will print values, counts, percentages, cumulative
 counts, and cumulative percentages for up to a hundred fields in a
 file.  The output report may be directed either to the terminal or
 to a report file.  Column definitions and labels are stored in a 
 command file for future use.  The command file layout is a simple
 ASCII file which may be changed with a text editor.  Maximum record 
 length is 20,000 characters and maximum field length is 40 characters.

  FREQ does very little conversion of data.  All tallies are given
 for data in raw ASCII character form sorted lexicographically.
 Generally FREQ outperforms SPSS by several magnitudes.  However,
 since the binary trees which FREQ uses for counts are unbalanced
 the algorithm degenerates to a list search and insert when the data
 has been sorted by the fields to be counted.

  Prompts from FREQ are self-explanatory.  The user should be able
 to work with FREQ after a little preliminary investigation.  For
 For further information contact Al Jaworski.
