Why isn't the animator getting my values?

 public class Sword: MonoBehaviour {
 
  public PlayerController playerController;
  private Animator anim;
  public Vector2 lastMove;
  void Start() {
      anim = GetComponent<Animator> ();
  }
  void Update() {
      if (playerController.lastMove == null) {
          print("lastmove is null");
      }
      lastMove.y = playerController.lastMove.y;
      lastMove.x = playerController.lastMove.x;
      anim.SetFloat ("LastMoveX", lastMove.x);
      anim.SetFloat ("LastMoveY", lastMove.y);
      anim.SetBool ("Sword", playerController.attacking);
  }
 }
 

The code is getting the variables as I want them, as I can see the numbers changing in Unity. I can't see the numbers changing in the animator for some reason though, even though this is how I have applied variables to the animator before. What am I doing wrong?