code: def _create_matrix_uniq_seq(sample_l, seq_l, maout, out, min_shared):
      
      skip = 0
      if int(min_shared) > len(sample_l):
          min_shared = len(sample_l)
      maout.write("id\tseq")
      for g in sample_l:
          maout.write("\t%s" % g)
      for s in seq_l.keys():
          seen = sum([1 for g in seq_l[s].group if seq_l[s].group[g] > 0])
          if seen < int(min_shared):
              skip += 1
              continue
          maout.write("\nseq_%s\t%s" % (seq_l[s].idx, seq_l[s].seq))
          for g in sample_l:
              if g in seq_l[s].group:
                  maout.write("\t%s" % seq_l[s].group[g])
              else:
                  maout.write("\t0")
          qual = "".join(seq_l[s].quality)
          out.write("@seq_%s\n%s\n+\n%s\n" % (seq_l[s].idx, seq_l[s].seq, qual))
      out.close()
      maout.close()
      logger.info("Total skipped due to --min-shared parameter (%s) : %s" % (min_shared, skip))
docs: create matrix counts for each different sequence in all the fasta files
  
      :param sample_l: :code:`list_s` is the output of :code:`_read_fasta_files`
      :param seq_l: :code:`seq_s` is the output of :code:`_read_fasta_files`
      :param maout: is a file handler to write the matrix count information
      :param out: is a file handle to write the fasta file with unique sequences
  
      :returns: Null