The Games-Howell post-hoc test is another nonparametric approach to compare combinations of groups or treatments. Although rather similar to Tukey’s test in its formulation, the Games-Howell test does not assume equal var...
这种分析方法称作方差分析(ANOVA) ，除了R中的基础包，还需要加载car、gplots、HH、rrcov和mvoutlier包...
The ANOVA F-test to compare the means of k normally distributed populations is not applicable when the variances are unknown, and not known to be equal. A spacial case, k=2, is the famous Behrens-Fisher problem (Behrens, 1929; Fisher, 1935). Welch (1951) test was proposed to fill this...
The ANOVA F-test to compare the means of k normally distributed populations is not applicable when the variances are unknown, and not known to be equal. A spacial case, k=2, is the famous Behrens-Fisher problem (Behrens, 1929; Fisher, 1935). Welch (1951) test was proposed to fill this...
得到的P值〈2.2e-16 ;结论不言自明。
This study concerns the allocation schemes of group sizes for Welch's test in a one-way heteroscedastic ANOVA. Optimal allocation approaches are presented for minimizing the total cost while maintaining adequate power and for maximizing power performance for a fixed cost. The commonly recommended ...
我相信你是正确的，因为没有一个简单的方法来做韦尔奇纠正了阿诺瓦与重新采样，但它应该有可能把一些东西...
Biostatistics Comparing Welch ANOVAa Kruskal-Wallis testand traditional ANOVA in case of heterogeneity of variance VIRGINIA COMMONWEALTH UNIVERSITY Wen Wan LiuHangchengAnalysis of variance (ANOVA) is a robust test against the normality assumption, but it may be inappropriate when the assumption of ...
ANOVABox-CoxGammaGeneralized linear modelGeometric meanRobust statisticsTransformationsTrimmed meanAlternatives for positively skewed and heteroscedastic data include the Yuen-Welch (YW) test, data transformations, and the generalized linear model (GzLM). Because the GzLM is rarely considered in psychology ...
毕业季接近尾声，通过答辩的各位同学们即将开始新的旅程。回顾论文点滴，想必既有心酸又充满欣慰。回顾毕业...