Results 21 to 30 of about 466,566 (229)
Frontiers in Neurology, 2022 AimsThis study aimed to build a prediction model to early diagnose intracranial atherosclerosis (ICAS)-related large vascular occlusion (LVO) in acute ischemic stroke patients before digital subtractive angiography.MethodsPatients enrolled in the DIRECT ...
He Li +12 more
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Global permutation tests for multivariate ordinal data: alternatives, test statistics, and the null dilemma [PDF]
, 2013 We discuss two-sample global permutation tests for sets of multivariate ordinal data in possibly high-dimensional setups, motivated by the analysis of data collected by means of the World Health Organisation's International Classification of Functioning,
Cieza, Alarcos +2 more
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The Investigation of the Relationship Between Growth Type and Capital Structure of Firms [PDF]
راهبرد مدیریت مالی, 2016 The purpose of this study was to investigation the relationship between growth type and capital structure of listed firms in Tehran Stock Exchange. For this purpose, the firms are classified in to three groups low, mix and high growth and statistical ...
Omid Pourheydari +4 more
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Pulmonary outcomes following specialized respiratory management for acute cervical spinal cord injury: a retrospective analysis. [PDF]
, 2017 Study designRetrospective analysis.ObjectivesTo identify multivariate interactions of respiratory function that are sensitive to spinal cord injury level and pharmacological treatment to promote strategies that increase successful liberation from ...
Crew, JD +5 more
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Variability of eight Polish populations of Pinus sylvestris L. expressed in traits of cones
Acta Societatis Botanicorum Poloniae, 2014 Two-year old cones were collected from 257 standing Pinus sylvestris L. trees, representing 8 Polish populations of the species. The cones were analyzed in respect to 11 morphological traits.
Maria A. Bobowicz, Adolf F. Korczyk
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Multivariate search for differentially expressed gene combinations
BMC Bioinformatics, 2004 Background To identify differentially expressed genes, it is standard practice to test a two-sample hypothesis for each gene with a proper adjustment for multiple testing. Such tests are essentially univariate and disregard the multidimensional structure
Klebanov Lev +4 more
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A new test for the mean vector in high-dimensional data [PDF]
Songklanakarin Journal of Science and Technology (SJST), 2015 For the testing of the mean vector where the data are drawn from a multivariate normal population, the renowned Hotelling’s T 2 test is no longer valid when the dimension of the data equals or exceeds the sample size.
Knavoot Jiamwattanapong +1 more
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Closed testing using surrogate hypotheses with restricted alternatives.
PLoS ONE, 2019 IntroductionThe closed testing principle provides strong control of the type I error probabilities of tests of a set of hypotheses that are closed under intersection such that a given hypothesis H can only be tested and rejected at level α if all ...
John M Lachin +3 more
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Journal the Winners, 2011 Before making investment decisions, investors need to analyze the pattern of trading days which change daily because of investors’ behavior in stock trading activity that affects the pattern of daily stock price movements.
Erric Wijaya, Fatiah Istarini
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Selecting the number of principal components: estimation of the true rank of a noisy matrix [PDF]
, 2015 Principal component analysis (PCA) is a well-known tool in multivariate statistics. One significant challenge in using PCA is the choice of the number of components.
Choi, Yunjin +2 more
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