在統計學中,中值絕對離差 (MAD) 是衡量定量數據單變量樣本變異性的穩健指標。 它也可以指通過從樣本計算的 MAD 估計的總體參數。[1]
對於單變量數據集X1, X2, ..., Xn,MAD定義為與數據中位數的離差的中位數: :[2]
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