---
name: "SWISS::Stars::EV"
section: "3pm"
platform: "linux"
package: "libswiss-perl"
version: "1.80-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/SWISS::Stars::EV"
---

# SWISS::Stars::EV(3pm)

### new

### fromText

### toText

### sort

### addEvidence( $evcode, $src, $author \[, $date\] )

```
 Title:    addEvidence
 Usage:    $evidenceTag = $entry->Stars->EV->addEvidence($evcode,
                                                         $src,
                                                         $author
                                                         [, $date])
 Function: adds the evidence to the EV block if it does not yet exist
           or returns the correct evidence tag if the evidence already exists,
           possibly with a different date.
 Args:    $evcode: the evidence code. e.g. ECO:0000269
          $src:    the source. e.g. PubMed:11433298
          $author: the author (initials). e.g. XXX p.s. For programs this could be '-'.
          $date: optional. If present, it must be in standard SWISS-PROT
                 date format. If not present the current date will be used.
 Returns: The correct evidence tag.
```

### updateEvidence( $evcode, $src, $author \[, $date\] )

```
 Title:    updateEvidence
 Usage:    $evidenceTag = $entry->Stars->EV->updateEvidence($evcode,
                                                            $src,
                                                            $author
                                                            [, $date])
 Function: updates the evidence to the EV block to $date or inserts it
           if it does not yet exist.
 Args:    $evcode: the evidence code. e.g. ECO:0000269
          $src:    the source. e.g. PubMed:11433298
          $author: the author (initials). e.g. XXX p.s. For programs this could be '-'.
          $date: optional. If present, it must be in standard SWISS-PROT
                 date format. If not present the current date will be used.
 Returns: The correct evidence tag.
```

## Name

SWISS::Stars::EV.pm

## Description

**SWISS/Stars/EV.pm** represents the evidence section within an SWISS-PROT + TrEMBL entry. See http://www3.ebi.ac.uk/~sp/intern/projects/evidenceTags/index.html

For a usage example, see evTest.pl in the Swissknife package.

## Inherits from SWISS::ListBase.pm

## Attributes

- "list" Each element of the list describes one evidence, itself represented as an array.