kNN prediction score
I work with a KNN-model for regression. I would like to evaluate the predictions my model does on my testset.
I imagine that you could evaluate how close the new point (with unknown label) is on an existing point from the training set. If the new point is exactly on top of it, the prediction score would be 1, and otherwise fall progressively the farther the point is from other points.
Is this possible in Rapid Miner?