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排序方式: 共有118条查询结果,搜索用时 250 毫秒
51.
In this paper, we propose a model based on a class of symmetric distributions, which avoids the transformation of data, stabilizes the variance of the observations, and provides robust estimation of parameters and high flexibility for modeling different types of data. Probabilistic and statistical aspects of this new model are developed throughout the article, which include mathematical properties, estimation of parameters and inference. The obtained results are illustrated by means of real genomic data. 相似文献
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In this paper, we analyze the relevance of intercultural education within contemporary educational debates in Argentina. First, we will review Argentinean legislation. Then, we will discuss the core characteristics of the Argentine educational system in order to study the historical incorporation of indigenous people into the school system. Later, we will explore concrete legislation regarding intercultural education, emphasizing the potential of such legislation as well the limitations. Finally, we will present how our findings connect to the main discussions in the field of anthropology and education. 相似文献
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The Analysis of Verbal Behavior - 相似文献
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Youn–Min Chou 《统计学通讯:理论与方法》2013,42(11):3995-4003
Assume that a sample is available from a population having an exponential distribution, and that l Future sample are to be taken from the same population. This paper provides a formula for the same population. This paper provides a formula for computing a one–sided lower simulataneous prediction limit which is to be below the (ki ? mi + 1) –st order statistics of a future sample of size ki for the i = 1,…,2, hased on the sample mean of a past sample. Tables for factors for one–sided lower simultaneous predicition limits are provided. Such limits are of practical importance in determining acceptance criteria and predicting system survival times. 相似文献
58.
Rendeková Alena Mičieta Karol Randáková Zuzana Ballová Dominika Eliašová Mariana Miškovic Ján 《Urban Ecosystems》2020,23(4):875-891
Urban Ecosystems - Tram and railway tracks represent specific urban habitats, which host a specific type of flora. This study aims to compile the information about species composition of flora of... 相似文献
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Mariana Rodrigues-Motta Hildete P. Pinheiro Eduardo G. Martins Márcio S. Araújo Sérgio F. dos Reis 《Journal of applied statistics》2013,40(7):1586-1596
In this study, we deal with the problem of overdispersion beyond extra zeros for a collection of counts that can be correlated. Poisson, negative binomial, zero-inflated Poisson and zero-inflated negative binomial distributions have been considered. First, we propose a multivariate count model in which all counts follow the same distribution and are correlated. Then we extend this model in a sense that correlated counts may follow different distributions. To accommodate correlation among counts, we have considered correlated random effects for each individual in the mean structure, thus inducing dependency among common observations to an individual. The method is applied to real data to investigate variation in food resources use in a species of marsupial in a locality of the Brazilian Cerrado biome. 相似文献
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Hong–Jie Sun 《统计学通讯:理论与方法》2013,42(11):3913-3921
Let X1,X2,…,Xn be n normal variates with zero means, unit variances and correlation matrix {pij). The orthant probability is the probability that all of the X1's are simultaneously positive. This paper presents a general reduction method by extending the method of Childs (1967), and shows that the probability can be represented by a linear combination of some multivariate integrals of order([n/2]?1). As illustrations, we apply the proposed method to the quadrivariate and six–variate cases. Some numerical results are also given. 相似文献