/**
* Combines all elements of an NumArray at a given axis with the `$callback`
* function
*
* @param NumArray $numArray given NumArray
* @param callback $callback callback function
* @param int $axis given axis
*
* @return NumArray
*
* @throws InvalidArgumentException will be thrown, if axis is out of bounds
*
* @since 1.0.0
*/
public static function reduceArray(NumArray $numArray, $callback, $axis)
{
if ($axis && $axis >= $numArray->getNDim()) {
throw new InvalidArgumentException('Axis ' . $axis . ' out of bounds');
}
return new NumArray(self::reduceRecursive($numArray->getData(), $callback, $axis));
}
/**
* Multiplies an array, NumArray or numeric value to the existing NumArray
*
* @param mixed $factor an other int, float, array or NumArray
*
* @return $this
*
* @api
* @since 1.0.0
*/
public function dot($factor)
{
if (!$factor instanceof NumArray) {
$factor = new NumArray($factor);
}
$result = Dot::dotArray($this->data, $this->shape, $factor->getData(), $factor->getShape());
$this->data = $result['data'];
$this->shape = $result['shape'];
$this->flushCache();
return $this;
}
/**
* Tests NumArray::getData
*/
public function testGetData()
{
$array = [1, 2, 3];
$numArray = new NumArray($array);
$this->assertSame($array, $numArray->getData());
}
