Results 21 to 30 of about 128,591 (295)

Nonparametric Statistical Methods

open access: yes, 2010
Nonparametric methods are appropriate when certain assumptions about distributions that common parametric methods make are questionable. In this entry, we review nonparametric statistical tests based on exact or simulated sampling distributions. We also discuss methods for nonparametric data exploration and nonparametric regression and we explain ...
Sijtsma, K., Emons, W.H.M.
openaire   +3 more sources

Uniform Consistency for Functional Conditional U-Statistics Using Delta-Sequences

open access: yesMathematics, 2022
U-statistics are a fundamental class of statistics derived from modeling quantities of interest characterized by responses from multiple subjects. U-statistics make generalizations the empirical mean of a random variable X to the sum of all k-tuples of X
Salim Bouzebda, Amel Nezzal, Tarek Zari
doaj   +1 more source

Statistical inference for induced L-statistics: a random perturbation approach

open access: yes, 2009
Suppose that X and Y are two numerical characteristics defined for each individual in a population. In a random sample of (X,Y) with sample size n, denote the rth ordered X variate by Xr:n and the associated Y variate, the induced rth order statistics ...
Leng, C.   +5 more
core   +1 more source

Nonparametric tests for transition probabilities in nonhomogeneous Markov processes

open access: yes, 2020
This paper proposes nonparametric two-sample tests for the direct comparison of the probabilities of a particular transition between states of a continuous time non-homogeneous Markov process with a finite state space.
Bakoyannis, Giorgos
core   +1 more source

Nonparametric stability methods for interpreting genotype by environment interaction of bread wheat genotypes (Triticum aestivum L.)

open access: yesGenetics and Molecular Biology, 2008
Evaluation of performance stability and high yield is essential for yield trials conducted in different environments. We determined the stability of 10 bread wheat (Triticum aestivum L.) genotypes (5 cultivars and 5 advanced lines) using nonparametric ...
Mevlut Akcura, Yuksel Kaya
doaj   +1 more source

Change-Point Tests Based on Integrated Empirical Distribution Functions [PDF]

open access: yesThe Egyptian Statistical Journal, 2004
Three new nonparametric change-point test statistics, based on the integrated empirical function (IEF) are introduced. Properties and distributions of these test statistics are also discussed.
Abd-Elnasser Rabou
doaj   +1 more source

Nonparametric tests of conditional treatment effects [PDF]

open access: yes, 2009
We develop a general class of nonparametric tests for treatment effects conditional on covariates. We consider a wide spectrum of null and alternative hypotheses regarding conditional treatment effects, including (i) the null hypothesis of the ...
Whang, Yoon-Jae   +5 more
core   +1 more source

Asymptotically Sufficient Statistics in Nonparametric Regression Experiments with Correlated Noise

open access: yesJournal of Probability and Statistics, 2009
We find asymptotically sufficient statistics that could help simplify inference in nonparametric regression problems with correlated errors. These statistics are derived from a wavelet decomposition that is used to whiten the noise process and to ...
Andrew V. Carter
doaj   +1 more source

A Class of Enhanced Nonparametric Control Schemes Based on Order Statistics and Runs

open access: yesStats, 2023
In this article, we establish a new class of nonparametric Shewhart-type control charts based on order statistics with signaling runs-type rules.
Nikolaos I. Panayiotou   +1 more
doaj   +1 more source

Prioritizing spatial accuracy in high-resolution fMRI data using multivariate feature weight mapping

open access: yesFrontiers in Neuroscience, 2014
Although ultra-high-field fMRI at field strengths of 7T or above provides substantial gains in BOLD contrast-to-noise ratio, when very high-resolution fMRI is required such gains are inevitably reduced.
Johannes eStelzer   +8 more
doaj   +1 more source

Home - About - Disclaimer - Privacy