Least Absolute Deviations and Least Squares

Least Absolute Deviations and Least Squares ^1

Least Absolute Deviations	Least Squares
最小一乘	最小二乘
$S=\sum_{x=0}^n \mid y_i - f(x_i) \mid$	$S=\sum_{x=0}^n ( y_i - f(x_i))^2$

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