public function min()
    {
        if (!$this->isValidNumericSet()) {
            throw new \RuntimeException('min: all values must be numeric');
        }
        if (empty($this->value)) {
            return null;
        }

        return min($this->value);
    }
public function min()
    {
        if (!$this->isValidNumericSet()) {
            throw new \RuntimeException('min: all values must be numeric');
        }
        if (empty($this->value)) {
            return null;
        }

        return min($this->value);
    }
public function min ( ) { if ( ! $ this -> isValidNumericSet ( ) ) { throw new \ RuntimeException ( 'min: all values must be numeric' ) ; } if ( empty ( $ this -> value ) ) { return null ; } return min ( $ this -> value ) ; }
Numeric minimum value in this Set.

@throws \RuntimeException if this Set contains non-numeric members.

@return mixed
Numeric minimum value in this Set .