Results 21 to 30 of about 13,501,891 (203)

Unexpected failures of recommended tests in basic statistical analyses of ecological data [PDF]

Web Ecology, 2008
Ecologists, when analyzing the output of simple experiments, often have to compare statistical samples that simultaneously are of uneven size, unequal variance and distribute non-normally.
Z. Kikvidze, J. Moya-Laraño
doaj   +1 more source

Precipitation trends in the Gambia River Basin (Senegal) for the period 1971-2010 [PDF]

Glasnik Srpskog Geografskog Društva, 2018
Since the 1970s, West African streams experienced profound modifications connected to pluviometric deficit, which have influenced on a strong decrease of water resources.
Faye Cheikh
doaj   +1 more source

On a Non-parametric Test in Life Test [PDF]

Bulletin of Mathematical Statistics, 1959
[2], [3], G. Ishii [5] . In a previous paper, we had treated the test of fit in life test in the case that we stop when the s-th death has occurred, G. Ishii [4] . In the present paper we treat the case when we stop the life test at a certain preassigned time T. Let X be a random variable having the continuous distribution function.
openaire   +2 more sources

Non-parametric statistical tests on 6 artificial datasets.

, 2023
Non-parametric statistical tests on 6 artificial datasets.
Xiaohua Zeng (793632), Jieping Cai (13262351), Chiping Yuan (13262357), Changzhou Liang (13262354)   +3 more
core   +1 more source

A Non-Parametric Test of Independence [PDF]

The Annals of Mathematical Statistics, 1948
A test is proposed for the independence of two random variables with continuous distribution function (d.f.). The test is consistent with respect to the class Ω′of d.f.’s with continuous joint and marginal probability densities (p.d.). The test statistic D depends only on the rank order of the observations.
openaire   +2 more sources

Non-parametric tests clustered by M-SIBO / IMO.

, 2022
Non-parametric tests clustered by M-SIBO / IMO.
Junji Yokoyama (3154701), Hiroki Sato (105731), Kenya Kamimura (633472), Takumi Naruse (12152434), Hiroyuki Abe (633475), Atsunori Tsuchiya (4102693), Masaaki Takamura (4102687), Kazuya Takahashi (69459), Kunihiko Yokoyama (9652621), Chihiro Sato (124145), Akira Sakamaki (3588026), Yuzo Kawata (12152437), Kentaro Tominaga (9004964), Shuji Terai (496086)   +13 more
core   +1 more source

Possibilities of Practical Use of Historical Distributions of Ash, Sulfur and Mercury Contents in Commercial Steam Coal of the USCB

Entropy, 2021
In the process of extracting hard coal, extensive databases are created on its quality parameters. A statistical assessment was made of the ash, sulfur, and mercury content of commercial coals produced in the Upper Silesian Coal Basin (USCB).
Ireneusz Pyka, Wojciech Kempa, Krzysztof Wierzchowski   +2 more
doaj   +1 more source

Parametric test for non-normally distributed continuous data: For and against

Electronic Physician, 2019
Choosing between parametric and non-parametric statistical tests for analysis of non-normally distributed continuous data is a long-standing controversy.
Umesh Wadgave, Mahesh Ravindra Khairnar
doaj   +1 more source

Investigation of frequency changes trend of days with dust storms in western half of Iran [PDF]

مخاطرات محیط طبیعی, 2016
In this research, daily and hourly data of dust storms (horizontal vision and meteorology codes) at 26 synoptic stations of western Iran for the period of 1990–2013has been used in order toidentifying and determining trend of dust-storm-frequencies.
Batool Zeinali
doaj   +1 more source

Benchmarking Non-Parametric Statistical Tests. [PDF]

, 2005
Although non-parametric tests have already been proposed for that purpose, statistical significance tests for non-standard measures (different from the classification error) are less often used in the literature. This paper is an attempt at empirically verifying how these tests compare with more classical tests, on various conditions.
Keller, Mikaela, Bengio, Samy, Wong, Siew Yeung   +2 more
openaire   +6 more sources