Filter out unmapped reads
Category Read Filters
Overview
Filter out unmapped reads.Unmapped reads are defined by three criteria:
- SAM flag value 0x4
- An asterisk for reference name or RNAME (column 3 of a SAM record)
- A zero value for leftmost mapping position for POS (column 4 of SAM record)
GATK version 4.2.0.0-SNAPSHOT built at Mon, 22 Feb 2021 13:44:49 -0800.
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