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<?php
namespace Elastica\Facet;
/**
* Implements the statistical facet.
*
* @category Xodoa
* @package Elastica
* @author Robert Katzki <robert@katzki.de>
* @link http://www.elasticsearch.org/guide/reference/api/search/facets/statistical-facet.html
*/
class Statistical extends AbstractFacet
{
/**
* Sets the field for the statistical query.
*
* @param string $field The field name for the statistical query.
* @return \Elastica\Facet\Statistical
*/
public function setField($field)
{
return $this->setParam('field', $field);
}
/**
* Sets multiple fields for the statistical query.
*
* @param array $fields Numerical array with the fields for the statistical query.
* @return \Elastica\Facet\Statistical
*/
public function setFields(array $fields)
{
return $this->setParam('fields', $fields);
}
/**
* Sets a script to calculate statistical information
*
* @param string $script The script to do calculations on the statistical values
* @return \Elastica\Facet\Statistical
*/
public function setScript($script)
{
return $this->setParam('script', $script);
}
/**
* Creates the full facet definition, which includes the basic
* facet definition of the parent.
*
* @see \Elastica\Facet\AbstractFacet::toArray()
* @return array
*/
public function toArray()
{
$this->_setFacetParam('statistical', $this->_params);
return parent::toArray();
}
}
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