31     protected $space;  variable in KMeans\\Point
35     public function __construct(Space $space, array $coordinates)  argument
37         $this->space       = $space;
38         $this->dimention   = $space->getDimention();
46             'data' => isset($this->space[$this]) ? $this->space[$this] : null,
52         if ($point->space !== $this->space) {
53             throw new \LogicException("can only calculate distances from points in the same space");
81     public function belongsTo(Space $space): bool  argument
83         return $this->space === $space;
86     public function getSpace(): Space
88         return $this->space;