普通最小二乘法(OLS)*
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| MP4 | N/A | mp4a.40.5 | Download |
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OLS（最小二乘法）主要用于线性回归的参数估计，它的思路很简单，就是求一些使得实际值和模型估值之差的平方和达到最小的值，将其作为参数估计值。
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