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Usage

Basic Command

fcount-rs -a <annotation.gtf> -o <output.txt> <bam_files>...

Options

Required

Option Description
-a, --annotation <PATH> GTF/GFF annotation file
-o, --output <PATH> Output count matrix file
<BAM_FILES> One or more BAM/SAM input files

Counting

Option Description Default
-t, --type <TYPE> Feature type to count exon
-g, --gene-id <ATTR> GTF attribute for gene ID gene_id
-f, --feature-level Count at feature level instead of gene level off

Paired-End

Option Description Default
-p, --paired Count fragments instead of reads off
-B, --both-aligned Require both mates aligned off
-C, --count-chimeric Count chimeric fragments off
--min-frag-len <INT> Minimum fragment length 50
--max-frag-len <INT> Maximum fragment length 600

Strandedness

Option Description Default
-s, --strand <MODE> Strand mode: 0=unstranded, 1=stranded, 2=reversely stranded 0

Multi-Mapping

Option Description Default
-M, --multi-mapping Count multi-mapping reads off
--fraction Use fractional counting off
--primary Count primary alignments only off

Overlap

Option Description Default
-O, --multi-overlap Allow reads assigned to multiple features off
--min-overlap <INT> Minimum overlapping bases 1
--frac-overlap <FLOAT> Minimum fraction of read overlapping feature 0.0
--frac-overlap-feature <FLOAT> Minimum fraction of feature overlapped 0.0
--largest-overlap Assign to feature with largest overlap only off

Filtering

Option Description Default
-Q, --min-mapq <INT> Minimum mapping quality 0
--ignore-dup Ignore duplicate reads off

Performance

Option Description Default
-T, --threads <INT> Number of threads 1

Output

Option Description
-R, --details <PATH> Output detailed read assignments
-q, --quiet Suppress progress output