Question: Based on this definition, we can easily verify several cases: . For 1NN, df = n . If yi = y, i.e., nNN, then df

Based on this definition, we can easily verify several cases: . For 1NN, df = n . If yi = y, i.e., nNN, then df = 1 . For linear regression, df = p . For NN, df = n/k The formula works for kernel methods too, we shall see that later on
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