Results 11 to 20 of about 1,087,289 (305)

TRANSFORMATIONS FOR MULTIVARIATE STATISTICS [PDF]

open access: yesEconometric Theory, 2004
Summary: This paper derives transformations for multivariate statistics that eliminate asymptotic skewness, extending results of \textit{N. Niki} and \textit{S. Konishi} [Ann. Inst. Stat. Math. 38, 371--383 (1986; Zbl 0609.62075)]. Within the context of valid Edgeworth expansions for such statistics we first derive the set of equations that such a ...
Hougaard   +4 more
openaire   +5 more sources

Multivariate variance ratio statistics [PDF]

open access: yes, 2014
We propose several multivariate variance ratio statistics. We derive the asymptotic distribution of the statistics and scalar functions thereof under the null hypothesis that returns are unpredictable after a constant mean adjustment (i.e., under the Efficient Market Hypothesis).
Seok Young Hong   +2 more
openaire   +7 more sources

Study on Rice Quality Evaluation Based on Multivariate Statistics

open access: yesShipin gongye ke-ji, 2022
Objective: To clarify the key physical and chemical indexes affecting the quality of rice, explore the relationship between sensory evaluation and physical and chemical test, and establish a simple and easy evaluation method of rice edible quality ...
Yijie WU   +3 more
doaj   +1 more source

MULTIVARIATE STATISTICAL ANALYSIS FOR ASSESSMENT OF THE RELATIONSHIPS BETWEEN BONE DENSITY, BIOGENIC ELEMENTS CONTENT, AND THE LEVEL OF OXIDATIVE STRESS IN OSTEOPOROTIC WOMEN [PDF]

open access: yesJournal of IMAB, 2022
The aim of the present study is to reveal hidden relationships between bone density, biogenic elements content, and the level of oxidative stress of female patients with osteoporosis and osteopenia.
Radka Tomova   +6 more
doaj   +1 more source

Multivariate order statistics via multivariate concomitants [PDF]

open access: yes, 2009
Let X¯1,…,X¯n denote a set of n independent identically distributed k-dimensional absolutely continuous random variables. A general class of complete orderings of such random vectors is supplied by viewing them as concomitants of an auxiliary random ...
Barry C. Arnold   +14 more
core   +1 more source

Multivariate statistical analysis and partitioning of sedimentary geochemical data sets: General principles and specific MATLAB scripts

open access: yesGeochemistry, Geophysics, Geosystems, 2013
Multivariate statistical treatments of large data sets in sedimentary geochemical and other fields are rapidly becoming more popular as analytical and computational capabilities expand.
Nicklas G. Pisias   +2 more
doaj   +1 more source

Comparative In Vitro Antioxidant Capacity and Terpenoid Profiling of Pumpkin Fruit Pulps from a Serbian Cucurbita maxima and Cucurbita moschata Breeding Collection

open access: yesAntioxidants, 2021
Pumpkin is considered a healthy and functional food. The consumption of pumpkins and pumpkin-based foods has been shown to confer several beneficial effects on human health due to their antioxidant capacity and terpenoid content. Consequently, this study
Milorad Miljić   +8 more
doaj   +1 more source

Application of Multivariate-Rank-Based Techniques in Clustering of Big Data

open access: yesVikalpa, 2018
Executive Summary Very large or complex data sets, which are difficult to process or analyse using traditional data handling techniques, are usually referred to as big data.
Pritha Guha
doaj   +1 more source

Wildfire Probability Mapping: Bivariate vs. Multivariate Statistics

open access: yesRemote Sensing, 2019
Wildfires are one of the most common natural hazards worldwide. Here, we compared the capability of bivariate and multivariate models for the prediction of spatially explicit wildfire probability across a fire-prone landscape in the Zagros ecoregion ...
Abolfazl Jaafari   +3 more
doaj   +1 more source

Ordination analysis in sedimentology, geochemistry and palaeoenvironment—Background, current trends and recommendations

open access: yesThe Depositional Record, 2021
Ordination is the name given to a group of methods used to analyse multiple variables without preceding hypotheses. Over the last few decades, the use of these methods in Earth science in general, and notably in analyses of sedimentary sources, has ...
Or M. Bialik   +2 more
doaj   +1 more source

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