【least_absolute_deviations】什么意思_英语least_absolute_deviations的翻译_音标_读音_用法_例句_在线翻译

least absolute deviations

最小乘法则

... deviations 绝对离差 ; 分别是均值绝对离差 Least Absolute Deviations 最小乘法则 ; 绝对值离差法 Least absolute deviations estimator 最小绝对差估计量 ..

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绝对值离差法

...的普通最小平方法（Ordinary Least Squares，OLS），另一种是使误差绝对值和极小化的绝对值离差法（Least Absolute Deviations，LAD），而分位数回归属于后者。分位数回归是对中值回归或f＝O．5中位数回归的拓展。

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短语

weighted total least absolute deviations 多元加权全最小一乘法 ; 加权全最小一乘法

经济学

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abstract: Least absolute deviations (LAD), also known as Least Absolute Errors (LAE), Least Absolute Value (LAV), or the L1 norm problem, is a mathematical optimization technique similar to the popular least squares technique that attempts to find a function which closely approximates a set of data. In the simple case of a set of (x,y) data, the approximation function is a simple "trend line" in two-dimensional Cartesian coordinates.

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By using LINGO software, coefficients can be estimated for linear least absolute deviations regression quickly and accurately, making it an effective approach to coefficient estimation.

利用LINGO软件能够快速、准确地估计出最小一乘线性回归的参数，从而使其成为一种有效的参数估计方法。

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