How to display the value of clazz?
def k_nearest_neighbors(node, nodes, k=3):
x1, y1 = node
distances = []
for x2, y2, node_cls in nodes:
distance = abs(x1 - x2) + abs(y1 - y2)
distances.append((node_cls, distance))
distances = sorted(distances, key=lambda x: x[1], reverse=False)
classes = [x[0] for x in distances[:k]]
cards = [
(2, 0, "schilten"), (0, 1, "schilten"), (0, 2, "schilten"),
(9, 2, "rosen"), (1, 13, "rosen"),
(3, 3, "eichel"),
(5, 5, "schellen"),
]
card = (2, 1)
clazz = k_nearest_neighbors(card, cards)
print(clazz) does not work.
