NAME

       idngram_merge - merge idngram file into one

SYNOPSIS

       idngram_merge [option]... idngram_file...

DESCRIPTION

       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.

OPTIONS All the following options are mandatory.

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

       -o, --out output-file
           Specifiy the final merged idngram file.

EXAMPLE

       Following example merge 2 id3gram files into a large one:

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

AUTHOR

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

SEE ALSO

       ids2ngram(1).