---
name: "Bio::DB::GFF::Util::Binning"
section: "3pm"
platform: "linux"
package: "libbio-perl-perl"
version: "1.7.8-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/Bio::DB::GFF::Util::Binning"
---

# Bio::DB::GFF::Util::Binning(3pm)

binning utility for Bio::DB::GFF index

## NAME

Bio::DB::GFF::Util::Binning - binning utility for Bio::DB::GFF index

## SYNOPSIS

```
 use Bio::DB::GFF::Util::Binning qw(bin bin_bot bin_top);
 my $tier = bin($start,$stop,$min);
```

## DESCRIPTION

This is a utility module that exports the functions **bin()**, **bin\_bot()** and **bin\_top()**.  These functions translate a range on the genome into a named bin that is used as an index in the Bio::DB::GFF schema.  The index makes certain range retrieval queries much faster.

## API

The remainder of the document describes the function calls.  No calls are exported by default, but must be imported explicitly.

- $bin\_name = bin($start,$stop,$bin\_size)

  Given a start, stop and bin size on the genome, translate this location into a bin name.  In a list context, returns the bin tier name and the position that the bin begins.

- $bottom = bin\_bot($tier,$start)

  Given a tier name and a range start position, returns the lower end of the bin range.

- $top = bin\_top($tier,$end)

  Given a tier name and the end of a range, returns the upper end of the bin range.

## BUGS

None known yet.

## SEE ALSO

Bio::DB::GFF,

## AUTHOR

Lincoln Stein \<lstein@cshl.org\>.

Copyright (c) 2001 Cold Spring Harbor Laboratory.

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.