Results 11 to 20 of about 215,880 (264)

SAS/IML Macros for a Multivariate Analysis of Variance Based on Spatial Signs

open access: yesJournal of Statistical Software, 2006
Recently, new nonparametric multivariate extensions of the univariate sign methods have been proposed. Randles (2000) introduced an affine invariant multivariate sign test for the multivariate location problem. Later on, Hettmansperger and Randles (2002)
Jaakko Nevalainen, Hannu Oja
doaj   +3 more sources

Dynamics of retinotopic spatial attention revealed by multifocal MEG

open access: yesNeuroImage, 2022
Visual focal attention is both fast and spatially localized, making it challenging to investigate using human neuroimaging paradigms. Here, we used a new multivariate multifocal mapping method with magnetoencephalography (MEG) to study how focal ...
Ilmari Kurki   +2 more
doaj   +1 more source

Evaluating the importance of different computed tomography scan-based factors in predicting the outcome of extracorporeal shock wave lithotripsy for renal stones [PDF]

open access: yesInvestigative and Clinical Urology, 2018
Purpose: To evaluate the impact of various computed tomography scan-based parameters of renal stones on the outcome of extracorporeal shock wave lithotripsy (ESWL).
Muhammad Waqas   +4 more
doaj   +1 more source

The multivariate multisample nonparametric rank statistics for the location alternatives

open access: yesAustrian Journal of Statistics, 2017
Multisample testing problems are among the most important topics in nonparametric statistics. Various nonparametric tests have been proposed for multisample testing problems involving location parameters, and the analysis of multivariate data is ...
Hidetoshi Murakami
doaj   +1 more source

Farming Systems Changes in the Urban Shadow: A Mixed Approach Based on Statistical Analysis and Expert Surveys

open access: yesAgriculture, 2021
Due to the growth of the “urban shadow”, farming systems in metropolitan areas (MAs) are characterized by specific environmental, economic, and social pressures. Urbanization pressure and its related threats, as well as the opportunities resulting from a
Wojciech Sroka, Dariusz Żmija
doaj   +1 more source

Influence of stroke infarct location on quality of life assessed in a multivariate lesion-symptom mapping study

open access: yesScientific Reports, 2021
Stroke has a deleterious impact on quality of life. However, it is less well known if stroke lesions in different brain regions are associated with reduced quality of life (QoL).
Alina Königsberg   +20 more
doaj   +1 more source

Permutation Tests for Multivariate Location Problems

open access: yesJournal of Multivariate Analysis, 1999
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Neuhaus, Georg, Zhu, Li-Xing
openaire   +1 more source

Long‐Term Prognostic Implications of Cerebral Microbleeds in Chinese Patients With Ischemic Stroke

open access: yesJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2017
BackgroundThis study was performed to determine the clinical correlates and long‐term prognostic implications of microbleed burden and location in Chinese patients with ischemic stroke.
Kui Kai Lau   +12 more
doaj   +1 more source

Proposing a Novel Method for Optimal Location Finding Based on Machine Learning Algorithms and Gray Wolf Optimization

open access: yesMajlesi Journal of Electrical Engineering, 2022
With the expansion of human activities, the volume of waste and hazardous waste produced has increased dramatically. Increasing the volume of waste has created challenges such as transportation hazards, cleanup, disposal, energy consumption, and most ...
Fatemeh Heydari Pirbasti   +3 more
doaj   +1 more source

Improving on Minimum Risk Equivariant and Linear Minimax Estimators of Bounded Multivariate Location Parameters

open access: yesRevstat Statistical Journal, 2010
We propose improvements under squared error loss of the minimum risk equivariant and the linear minimax estimators for estimating the location parameter θ of a p-variate spherically symmetric distribution, with θ restricted to a ball of radius m ...
Éric Marchand   +1 more
doaj   +1 more source

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