Torrent Suite Software 5.4 Help

Long indel assembly advanced settings

These parameters control the behavior of the long indel assembler (which is a module within the variantCaller plugin). Again, these parameters are recommended for advanced users only.

Both the FreeBayes module and the long indel assembler generate lists of variant candidates (other modules in the variantCaller plugin then evaluate the candidates). The assembly module attempts to call any indel longer than 3 bp, but only reports indels that fail to be called by the FreeBase module.

Parameter

Description

kmer_len

Size of the smallest k-mer used in assembly

Allowed values: Integers >= 5

Suggested trial value between 11 and 30

Impact: Increasing values make indel calls less sensitive but more specific

min_var_freq

Minimum frequency of the variant to be reported

Allowed values: Decimal numbers between 0 and 1

Suggested trial value between 0.1 and 0.4

Impact: Increasing values make indel calls less sensitive but more specific

min_var_count

Minimum support for a variant to be evaluated

Allowed values: Integers > 1

Suggested trial value between 3 and 30

Impact: Increasing values make indel calls less sensitive but more specific

short_suffix_match

Minimum assembled sequence match on both sides of the variant

Allowed values: Integers > 2

Suggested trial value between 4 and kmer_len

Impact: Increasing values make indel calls less sensitive but more specific

min_indel_size

Minimum size indel reported by assembly

Allowed values: Integers > 0

Suggested trial value between 2 and 30

Impact: Increasing values make indel calls less sensitive but more specific

max_hp_length

Variants containing HP larger than this are not reported

Allowed values: Integers > 1

Suggested trial value between 2 and 11

Impact: Increasing values make indel calls more sensitive but less specific

relative_strand_bias

Variants with strand bias above this are not reported

Allowed values: Decimal numbers between 0 and 1

Suggested trial value between 0.6 and 1.0

Impact: Increasing values make indel calls more sensitive but less specific

output_mnv

Enables reporting of complex variants

Allowed values: 1 = report complex variants, 0 = don't report

Suggested trial value 0