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  • Segmentation fault with FastX quality stats (FastXv0.0.13)

    I just started using FASTX to trim my Illumina reads (synthetic long reads with Sanger encoding). I used the fastq_quality_trimmer command (command below) and it ran with no issues.

    ./fastq_quality_trimmer -Q33 -t 28 -i /LR6000035-DNA_A01-LRAAD-01_LongRead.fastq -o L1_trimmed_28.fastq

    As a sanity check, I am want to run the fastx quality stats on my trimmed reads but I keep getting an error message 'Segmentation default'. Below is the command that I am using:

    ./fastx_quality_stats -Q33 -N -i L1_trimmed_28.fastq -o L1_trimmed_28_stats

    Does anyone have any idea as to what is going on? I am using the latest version of fastx and am also specifying the -Q parameter.

    Thank you very much!

  • #2
    1 year after....

    Check read length.
    In fastx_quality_stats, there is a limit at 2000nt.

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