查询词典 cook

James Cook was a British explorer, navigator and cartographer.

James Cook 是英国的一位探险家、航海家和制图学家。

James Cook was an English explorer, navigator and cartographer.

生活小百科网：James Cook 是英国的一位探险家、航海家和制图学家。

Joseph Banks had convinced Cook and other explorer navigators that it was a good idea to include naturalists on what we euphemistically refer to as 'voyages of exploration.

Joseph Banks 说服了 Cook 以及其它的一些探索航海家，指出将博物学家包含在'探险航海'的队伍之中是一个好的想法。

The generalized influence function and generalized Cook distance were used to study local influence of observations on the parameter estimates in the growth curve model with uniform covariance structure.

利用广义影响函数和广义Cook统计量来研究具有均匀协方差结构的曲线增长模型的局部影响问题。

Generalized influence function ; generalized Cook distance ; growth curve model ; uniform covariance structure ; diagnostics

广义影响函数；广义Cook统计量；曲线增长模型；均匀协方差结构；诊断

Firstly, the equivalency of case deletion model and mean-shift outlier model is investigated; and several diagnostic measures, such as Cook distance, generalized leverage, residuals, and likelihood ratio statistics et al., are obtained. Secondly, we investigate the local influence for the models, several commonly-used perturbed models are studied, and the close forms of influence matrices are obtained. At last, a real example illustrates that our method is available.

首先，证明了均值漂移模型与删除模型的等价性，并得到了残差、Cook距离，似然比统计量等诊断统计量；其次研究了该模型的局部影响分析，得到了局部影响分析的曲率度量；并分别对常见的扰动模型进行分析，得到了计算影响矩阵的简洁公式；然后，通过实例验证了方法的可行性。

The basic diagnostic statistics such as Cook distance, generalized leverage and residuals et al. are introduced, and the equivalency of case deletion model and mean-shift outlier model is investigated. Some specific problems, such as local influence analysis and the test for heteroscedasticity are discussed. Finally, numerical examples are given to illustrate our diagnostic methods.

首先，证明了均值漂移模型与数据点删除模型的等价性定理并定义了残差、Cook距离等诊断统计量；其次，研究了异常点的Score检验统计量；第三，研究了该模型的局部影响分析，得到了局部影响分析的曲率度量；第四，研究了该模型的异方差检验问题，得到了检验异方差的Score检验统计量和修正的Score检验统计量；最后，通过实例分析验证了这些诊断方法的有效性。

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Indeed, Cook and coauthors found evidence that Charon's surface composition differs between its Pluto-facing and anti-Pluto faces, with the sub-Pluto face showing deposits of more ammonia-rich ammonia hemihydrate (NH3 · 0.5H2O) and the anti-Pluto face more water-rich ammonia dihydrate (NH3 · 2H2O).

的确，Cook 同合著者们发现了喀戎表面朝向冥王星一面和背向冥王星一面间成分差异的证据，向着冥王星一面的沉积物表现出较多的富氨的半水合氨（NH3 · 0.5H2O），背向冥王星的一面有较多的富水的二水合氨(NH3 · 2H2O)。

Even so, Charlie Cook, a close follower of the electoral horse-race, takes a dim view of Democratic prospects in November.

即使这样，长期关注选举的观察员Charlie Cook对民主党在11月的表现不持乐观态度。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。