Parameter estimates and their standard errors and confidence intervals were computed by classical method, classical method after Box-Cox transformation and bootstrapping. 用经典方法、BoxCox变换后的经典方法和自助法计算参数估值的均数、标准误和置信区间。
This paper brings up that golden section search can be used to search for the parameter in Box Cox(BC) transformation and offers a kind of steps in computing it. 提出可以使用黄金分割法确定Box-Cox变换中的参数,给出了一种计算步骤。
Theoretical analysis and experiments show : comparing with a dimension lattice search, the searching for the parameter in Box Cox(BC) transformation by golden section search has less calculation, and it is easy to get more accurate result and is more applicable. 并从理论分析和实例检验两方面说明了与一维格点搜索法相比,使用黄金分割法确定Box-Cox变换中的参数计算量较小,容易使计算结果达到较高的精确度,且易用性也有所提高。
Results indicate that the Box-Cox approach provides better normality for data transforms, but in the case of evaluation by the statistical properties of the estimations on quantiles through reverse transform, the PNT is superior to Box-Cox method. 研究表明,BoxCox变换后样本的正态性更优,若以反变换后对水文设计值估计的统计性能评价,则以多项式正态变换的效果更优。
These two opponents lived a Box and Cox existence in the city. 这两个对手在这城市里过着彼此永不相见的生活。