---
name: "sga-astat"
section: "1"
platform: "linux"
package: "sga"
version: "0.10.15-7+b1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/sga-astat"
---

# sga-astat(1)

Compute Myers' a-statistic for a set of contigs using the read alignments in in.bam

## NAME

sga-astat - Compute Myers' a-statistic for a set of contigs using the read alignments in in.bam

## SYNOPSIS

**sga-astat** *\[options\]* *\<in.bam\>*

## DESCRIPTION

The major goal of SGA is to be very memory efficient, which is achieved by using a compressed representation of DNA sequence reads.

SGA is a de novo assembler for DNA sequence reads. It is based on Gene Myers' string graph formulation of assembly and uses the FM-index/Burrows-Wheeler transform to efficiently find overlaps between sequence reads.

## OPTIONS

- \-m=INT

  only compute a-stat for contigs at least INT bases in length

- \-b=INT

  use the longest INT contigs to perform the initial estimate of the arrival rate (default: 20)

- \-n=INT

  perform INT bootstrap iterations of the estimate

- \-g=INT

  use INT as the genome size instead of estimating it

- \--no-duplicates

  do not use duplicate reads to calculate statistics

## AUTHOR

This manpage was written by Andreas Tille for the Debian distribution and can be used for any other usage of the program.