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Estimation of Non-parametric Regression for Dasometric Measures

机译:测压测量的非参数回归估计

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摘要

The aim of this paper is to describe a simulation procedure to compare parametric regression against a non-parametric regression method, for different functions and sets of information. The proposed methodology improves lack of fit at the edges of the regression curves, and an acceptable result is obtained for the no-parametric estimation in all studied cases. Larger differences appear at the edges of the estimation. The results are applied to the study of dasometric variables, which do not fulfil the normality hypothesis needed for parametric estimation. The kernel regression shows the relationship between the studied variables, which would not be detected with more rigid parametric models.
机译:本文的目的是描述针对不同功能和信息集的比较参数回归与非参数回归方法的仿真程序。所提出的方法改善了回归曲线边缘的拟合不足,并且在所有研究案例中的无参数估计均获得了可接受的结果。较大的差异出现在估计的边缘。这些结果将应用于无法满足参数估计所需正态性假设的数据变量研究。核回归显示研究变量之间的关系,而使用更严格的参数模型则无法检测到。

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