排序方式: 共有13条查询结果,搜索用时 0 毫秒
11.
12.
In the analysis of variance (Anova ) the use of orthogonal contrasts is quite common and is a traditional topic in many basic Anova courses. Similar ideas apply to rank tests. In this paper we present a simple and general method that allows an orthogonal contrast decomposition of rank test statistics such as the Kruskal‐Wallis, Friedman and Durbin statistics. The components of the test statistics are informative, particularly when ordered alternatives are of interest. The method can handle ties, and null distributions are readily available. Most of the methods are not new, but the way we present them is. Moreover, our formulation makes it easier to better understand and interpret the tests when the traditional location‐shift assumption does not hold. The methods are illustrated using several data sets. 相似文献
13.
在温室气体减排上,发达国家与发展中国家的矛盾焦点表面来看主要集中在减排目标、资金援助和技术支持方面,但其深层次的分歧则在于对减排利益的权衡与争取。通过建立减排压力与动力指标,从减排压力、减排能力与减排政策立场三方面,将减排态度划分为推动者、旁观者、中间摇摆者和拖后腿者四种类型。选取主要温室气体排放的发达国家和地区,分析得出以欧美为主的这些发达国家和地区的减排态度类型,为中国等发展中国家的温室气体减排策略提供参考。 相似文献