Results 81 to 90 of about 219,896 (196)
Transactions of the Karelian Research Centre of the Russian Academy of Sciences, 2017 Here we consider the coenotic distribution of 23 species of the genus Sphagnum and their relation to prime ecological factors in Pinezhsky Strict Nature Reserve (Arkhangelsk Region, north of European Russia).
Sergei Popov, Vladimir Fedosov
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Missing covariates in logistic regression, estimation and distribution selection. [PDF]
We derive explicit formulae for estimation in logistic regression models where some of the covariates are missing. Our approach allows for modeling the distribution of the missing covariates either as a multivariate normal or multivariate t-distribution.
Claeskens, Gerda, Consentino, Fabrizio
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Model Comparison of Coordinate-Free Multivariate Skewed Distributions with an Application to Stochastic Frontiers [PDF]
We consider classes of multivariate distributions which can model skewness and are closed under orthogonal transformations. We review two classes of such distributions proposed in the literature and focus our attention on a particular, yet quite flexible,
Jose T.A.S. Ferreira, Mark F.J. Steel
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Limited and full information estimation and goodness-of-fit testing in 2n contingency tables [PDF]
(WP 14/03 Clave pdf)High-dimensional contingency tables tend to be sparse and standard goodness-of-fit statistics such as X 2 cannot be used without pooling categories.As an improvement on arbitrary pooling, for goodness-of-fit of large 2 n contingency ...
ALBERTO MAYDEU
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On Estimated Projection Pursuit-Type Cramer-von Mises Statistics
, 1997 This paper addresses the problem of testing for a multivariate distribution, which belongs to a known parametric distribution family. The estimated Cramer-Von Mises-type test statistics are constructed using projection pursuit technique.
Bhatti, Ishaq +2 more
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A note on testing for homoscedasticity in high-dimensional time series
Research in StatisticsWe consider the problem of testing for homoscedasticity in high-dimensional time series, under the assumption that the sample size n and the dimension p satisfy [Formula: see text] as [Formula: see text]. The homoscedasticity refers to the case where the
Yosei Yoshida, Yan Liu
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Asymptotic distributions of a test statistic in multivariate linear relationships
Journal of the Japan Statistical Society, Japanese Issue, 1992 Summary: For testing problems of the coefficient vectors of \(p\)-variate linear functionals and structured relationships, a statistic which is based on the multiple correlation coefficient between the null variate and the uncorrelated \((p-1)\) variates is considered.
openaire +2 more sources
Depth functions based on a number of observations of a random vector [PDF]
, 2007 We present two statistical depth functions given in terms of the random variable defined as the minimum number of observations of a random vector that are needed to include a fixed given point in their convex hull.
Cascos Fernández, Ignacio +1 more
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Intelligent PharmacyIntroduction: Cephalosporins, a class of beta-lactam antibiotics, are commonly used in medical practice. However, their potential advantages, based on physicochemical and pharmacokinetic variables, are often overlooked.
Carlos Alberto Escobar Angulo +2 more
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Multivariate Pareto distribution [PDF]
, 2019 Title: Multivariate Pareto distribution Author: Oleksandr Novytskyi Department: Department of Probability and Mathematical Statistics (305. 32- KPMS) Supervisor: RNDr. Lucie Mazurová, Ph.D., Department of Probability and Mathematical Statistics (305.
Novytskyi, Oleksandr
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