Results 11 to 20 of about 347,353 (142)

The Information Geometry of Sparse Goodness-of-Fit Testing

Entropy, 2016
This paper takes an information-geometric approach to the challenging issue of goodness-of-fit testing in the high dimensional, low sample size context where—potentially—boundary effects dominate. The main contributions of this paper are threefold: first,
Paul Marriott, Radka Sabolová, Germain Van Bever, Frank Critchley   +3 more
doaj   +1 more source

Clarifying the Implicit Assumptions of Two-Wave Mediation Models via the Latent Change Score Specification: An Evaluation of Model Fit Indices

Frontiers in Psychology, 2021
Statistical mediation analysis is used to investigate mechanisms through which a randomized intervention causally affects an outcome variable. Mediation analysis is often carried out in a pretest-posttest control group design because it is a common ...
Matthew J. Valente, A. R. Georgeson, Oscar Gonzalez   +2 more
doaj   +1 more source

Quantum Chi-Squared and Goodness of Fit Testing [PDF]

, 2014
The density matrix in quantum mechanics parameterizes the statistical properties of the system under observation, just like a classical probability distribution does for classical systems. The expectation value of observables cannot be measured directly,
Bahadur R. R., Cramer H., Fisher R. A., Frank Verstraete, Hayashi M., Helstrom C. W., Holevo A. S., Kristan Temme, Pearson K., Petz D., Van der Vaart A. W.   +10 more
core   +4 more sources

Testing Goodness-of-Fit with the Kernel Density Estimator: GoFKernel

Journal of Statistical Software, 2015
To assess the goodness-of-fit of a sample to a continuous random distribution, the most popular approach has been based on measuring, using either L∞ - or L2 -norms, the distance between the null hypothesis cumulative distribution function and the ...
Jose M. Pavia
doaj   +1 more source

sphstat: A Python package for inferential statistics on vectorial data on the unit sphere

SoftwareX, 2023
Data that resides on the surface of a 2-sphere is common in various scientific fields, including physics, earth sciences, astronomy, and psychoacoustics.
Hüseyin Hacıhabiboğlu
doaj   +1 more source

Asymptotically distribution-free goodness-of-fit testing for tail copulas [PDF]

, 2014
Let $(X_1,Y_1),\ldots,(X_n,Y_n)$ be an i.i.d. sample from a bivariate distribution function that lies in the max-domain of attraction of an extreme value distribution.
Can, Sami Umut, Einmahl, John H. J., Khmaladze, Estate V., Laeven, Roger J. A.   +3 more
core   +3 more sources

Testing Multivariate Normality Based on F-Representative Points

Mathematics, 2022
The multivariate normal is a common assumption in many statistical models and methodologies for high-dimensional data analysis. The exploration of approaches to testing multivariate normality never stops.
Sirao Wang, Jiajuan Liang, Min Zhou, Huajun Ye   +3 more
doaj   +1 more source

Assessing Goodness of Fit for Verifying Probabilistic Forecasts

Forecasting, 2021
The verification of probabilistic forecasts in hydro-climatology is integral to their development, use, and adoption. We propose here a means of utilizing goodness of fit measures for verifying the reliability of probabilistic forecasts.
Tae-Ho Kang, Ashish Sharma, Lucy Marshall   +2 more
doaj   +1 more source

Nonparametric checks for single-index models [PDF]

, 2005
In this paper we study goodness-of-fit testing of single-index models. The large sample behavior of certain score-type test statistics is investigated. As a by-product, we obtain asymptotically distribution-free maximin tests for a large class of local ...
Stute, Winfried, Zhu, Li-Xing
core   +3 more sources

vsgoftest: An R Package for Goodness-of-Fit Testing Based on Kullback-Leibler Divergence

Journal of Statistical Software, 2020
The R package vsgoftest performs goodness-of-fit (GOF) tests, based on Shannon entropy and Kullback-Leibler divergence, developed by Vasicek (1976) and Song (2002), of various classical families of distributions. The so-called Vasicek-Song (VS) tests are
Justine Lequesne, Philippe Regnault
doaj   +1 more source