NAME

Fasta - Library of FASTA related functionality

SYNOPSIS

use Fasta;

my %counts = Fasta.count-bases($file);
say %counts{"Carsonella ruddii"};     # bag with frequencies

my %sequences = Fasta.sequences($file);
say %sequences{"Carsonella ruddii"};  # sequence as string

DESCRIPTION

A library for Fasta processing related logic.

count-bases

my %labels = Fasta.count-bases($file);
say %label{"Carsonella ruddii"};  # bag with frequencies

Takes the name of a Fasta file, and creates a hash with labels encountered as keys, and a Bag with the nucleotide letters and their frequencies.

sequences

my %sequences = Fasta.sequences($file);
say %sequences{"Carsonella ruddii"};  # sequence as string

Takes the name of a Fasta file, and creates a hash with labels encountered as keys, and a string with the actual sequence.

INSPIRATION

Inspired by the Suman Khanal's:

https://sumankhanal.netlify.app/post/raku/count_dna/

AUTHOR

Elizabeth Mattijsen <[email protected]>

Source can be located at: https://github.com/lizmat/Fasta . Comments and Pull Requests are welcome.

If you like this module, or what I’m doing more generally, committing to a small sponsorship would mean a great deal to me!

COPYRIGHT AND LICENSE

Copyright 2020, 2021, 2024, 2025 Elizabeth Mattijsen

This library is free software; you can redistribute it and/or modify it under the Artistic License 2.0.

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