---
name: "Bio::SeqFeature::Similarity"
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::SeqFeature::Similarity"
---

# Bio::SeqFeature::Similarity(3pm)

A sequence feature based on similarity

## NAME

Bio::SeqFeature::Similarity - A sequence feature based on similarity

## SYNOPSIS

```
    # obtain a similarity feature somehow
    print "significance: ", $sim_fea->significance(), "\n";
    print "bit score: ", $sim_fea->bits(), "\n";
    print "score: ", $sim_fea->score(), "\n";
    print "fraction of identical residues: ", $sim_fea->frac_identical(), "\n";
```

## DESCRIPTION

This module is basically a sequence features based on similarity, and therefore has support for measures assessing the similarity.

Everything else is inherited from Bio::SeqFeature::Generic.

## FEEDBACK

### Mailing Lists

User feedback is an integral part of the evolution of this and other Bioperl modules. Send your comments and suggestions preferably\
  to one of the Bioperl mailing lists. Your participation is much appreciated.

```
  bioperl-l@bioperl.org                  - General discussion
  http://bioperl.org/wiki/Mailing_lists  - About the mailing lists
```

### Support

Please direct usage questions or support issues to the mailing list:

*bioperl-l@bioperl.org*

rather than to the module maintainer directly. Many experienced and  reponsive experts will be able look at the problem and quickly  address it. Please include a thorough description of the problem  with code and data examples if at all possible.

### Reporting Bugs

Report bugs to the Bioperl bug tracking system to help us keep track the bugs and their resolution.  Bug reports can be submitted via the web:

```
  https://github.com/bioperl/bioperl-live/issues
```

## AUTHOR - Hilmar Lapp

Email hlapp@gmx.net or hilmar.lapp@pharma.novartis.com

## APPENDIX

The rest of the documentation details each of the object methods. Internal methods are usually preceded with a \_

### significance

```
 Title   : significance
 Usage   : $evalue = $obj->significance();
           $obj->significance($evalue);
 Function:
 Returns :
 Args    :
```

### bits

```
 Title   : bits
 Usage   : $bits = $obj->bits();
           $obj->bits($value);
 Function:
 Returns :
 Args    :
```

### frac\_identical

```
 Title   : frac_identical
 Usage   : $fracid = $obj->frac_identical();
           $obj->frac_identical($value);
 Function:
 Returns :
 Args    :
```

### seqlength

```
 Title   : seqlength
 Usage   : $len = $obj->seqlength();
           $obj->seqlength($len);
 Function:
 Returns :
 Args    :
```

### seqdesc

```
 Title   : seqdesc
 Usage   : $desc = $obj->seqdesc();
           $obj->seqdesc($desc);
 Function: At present this method is a shorthand for
           $obj->annotation()->description().
           Note that this is not stored in the tag system and hence will
           not be included in the return value of gff_string().
 Returns :
 Args    :
```