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摘要: |
考虑带等式约束的奇异线性模型的参数估计,为了克服复共线性问题,提出了一个新的Liu型估计;同时给出这个估计的一些性质,并且得到了这个新的Liu型估计在均方误差矩阵准则(MSEM)下优于约束最小二乘法估计的充要条件;得到在均方误差(MSE)准则下新估计优于约束最小二乘估计的充分条件; |
关键词: Liu型估计 约束最小二乘估计 均方误差 均方误差矩阵 |
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Liu-type Estimator on Singular Linear Model with Linear Equation Restriction |
LIAO Xun
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Abstract: |
This paper considers parameter on singular linear model with equation restriction,presents a new Liu-type Estimator in order to overcome collinearity some properties for this … |
Key words: Liu-type Estimator restricted least square estimator mean square error mean square error matrix |