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          | parse_score(line) Extract the score from the comment in a line of a Phase subset file.
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          | merge_readers(readers,
        outfh,
        nreport=None) |  |  | 
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          | merge_batch(filenames,
        output_filename,
        nreport=None) Merge the give subset files in a single pass.
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          | merge_all(filenames,
        output_filename,
        batch_size=128,
        nreport=None) Merge any number of subset files, opening only up to 'batch_size' at 
      a time and doing multiple passes if necessary.
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          | parse_merge_args() Parse arguments to the glide_subset_merge script.
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          | merge_main() Main function for the glide_subset_merge script.
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    |  | 
        
          | phase_subset_reader(fname) Return an iterator that reads a Phase subset file, skipping 
      LIGAND_DIR lines.
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    |  | 
        
          | phase_subset_count(fname) Count the lines in a Phase subset file, ignoring LIGAND_DIR lines.
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