filtlong - quality filtering tool for Nanopore and PacBio
reads
filtlong {OPTIONS} [input_reads]
- output thresholds:
- -t[int],
--target_bases [int]
- keep only the best reads up to this many total bases
- -p[float],
--keep_percent [float]
- keep only this percentage of the best reads (measured by bases)
- --min_length
[int]
- minimum length threshold
- --min_mean_q
[float]
- minimum mean quality threshold
- --min_window_q
[float]
- minimum window quality threshold
- external references (if provided, read quality will be determined using
these instead of from the Phred scores):
- -a[file],
--assembly [file]
- reference assembly in FASTA format
- -1[file], --illumina_1 [file]
- reference Illumina reads in FASTQ format
- -2[file], --illumina_2 [file]
- reference Illumina reads in FASTQ format
- score weights (control the relative contribution of each score to the
final read score):
- --length_weight
[float]
- weight given to the length score (default: 1)
- --mean_q_weight
[float]
- weight given to the mean quality score (default: 1)
- --window_q_weight
[float]
- weight given to the window quality score (default: 1)
- read manipulation:
- --trim
- trim non-k-mer-matching bases from start/end of reads
- --split
[split]
- split reads at this many (or more) consecutive non-k-mer-matching
bases
- other:
- --window_size
[int]
- size of sliding window used when measuring window quality (default:
250)
- --verbose
- verbose output to stderr with info for each read
- --version
- display the program version and quit
- -h, --help
- display this help menu
For more information, go to:
https://github.com/rrwick/Filtlong
This manpage was written by Andreas Tille for the Debian
distribution and can be used for any other usage of the program.