idngram_merge - merge idngram file into one

       Originally   written   by   Phill.Zhang   <phill.zhang@sun.com>.    Currently   maintained   by  Kov.Chai
       <tchaikov@gmail.com>.

idngram_merge merge multiple idngram file, each of them are sorted [id1,...,idN,freq] array, into one
       idngram file. For those id1..idN which appear in more than one files, only one item will appear in the
       final file, and its freq are summed. The idngram files are original generated by ids2ngram.

       Following example merge 2 id3gram files into a large one:

           B<idngram_merge -n3 -o all.id3gram first.id3gram second.id3gram>

       idngram_merge - merge idngram file into one

-n, --NMaxN
           Specify the N-gram of source data file.

       -o, --outoutput-file
           Specify the final merged idngram file.

ids2ngram(1).

perl v5.36.0                                       2023-08-08                                   IDNGRAM_MERGE(1)

idngram_merge [option]... idngram_file...