Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Iheanyi S. Iwueze"'
Publikováno v:
Communications in Statistics - Simulation and Computation. 49:355-374
It is now a common knowledge that most data that occur in practice violate the assumption of normality. The Student’s t distribution is not only a handy alternative to such a case but also possesse...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7b3848f938b97befc5c9657edf7c5d4f
https://doi.org/10.1080/03610918.2018.1484481
https://doi.org/10.1080/03610918.2018.1484481
Publikováno v:
Journal of Modern Applied Statistical Methods. 15:382-399
This paper presents some tests for seasonality in a time series data which considers the model structure and the nature of trending curve. The tests were applied to the row variances of the Buys Ballot table. The Student t-test and Wilcoxon Signed-Ra
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https://explore.openaire.eu/search/publication?articleId=doi_________::be0810b20ece7d1aff972095c61d9e2e
https://doi.org/10.22237/jmasm/1478002920
https://doi.org/10.22237/jmasm/1478002920
Publikováno v:
Bulletin of Mathematical Sciences and Applications. 17:57-74
This study examines the discrete wavelet transform as a transformation technique in the analysis of non-stationary time series while comparing it with power transformation. A test for constant variance and choice of appropriate transformation is made
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5cc48b55845d84f06653e28f498337f2
https://doi.org/10.18052/www.scipress.com/bmsa.17.57
https://doi.org/10.18052/www.scipress.com/bmsa.17.57
Publikováno v:
Applied Mathematics. :633-645
Uses of the Buys-Ballot table for choice of appropriate transformation (using the Bartlett technique), assessment of trend and seasonal components and choice of model for time series decomposition are discussed in this paper. Uses discussed are illus
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https://explore.openaire.eu/search/publication?articleId=doi_________::75bbfc8b69d8edfbf99326c8b254ee4c
https://doi.org/10.4236/am.2011.25084
https://doi.org/10.4236/am.2011.25084
Publikováno v:
Asian Journal of Mathematics & Statistics. 1:80-89
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a1d120694c9fb2fea8648b2d6a958155
https://doi.org/10.3923/ajms.2008.80.89
https://doi.org/10.3923/ajms.2008.80.89
Autor:
Iheanyi S. Iwueze, A. C. Akpanta
Publikováno v:
Journal of Applied Sciences. 7:2414-2422
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa7b0b81a5c578ecddb28b5b9c85f6de
https://doi.org/10.3923/jas.2007.2414.2422
https://doi.org/10.3923/jas.2007.2414.2422
Autor:
Iheanyi S. Iwueze, Ohakwe Johnson
Publikováno v:
Braz. J. Probab. Stat. 25, no. 1 (2011), 90-98
The covariance structure among other properties of the square of the purely diagonal bilinear time series model is obtained. The time series properties of these squares are compared with those of the linear moving average time series model. It was di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cfd09cfeefd51789cdf8f9cb0f690181
https://doi.org/10.1214/09-bjps111
https://doi.org/10.1214/09-bjps111
Autor:
Eleazar C. Nwogu, Iheanyi S. Iwueze
Publikováno v:
Journal of the Nigerian Association of Mathematical Physics; Vol 9 (2005); 357-366
The Buys-Ballot estimation procedure for time series decomposition when trend-cycle component is either exponential, modified exponential, Gompertz or logistic is discussed in this paper. Estimates are derived for the additive and multiplicative mode
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9fba315fbf362ffbb11437a107b3ec5d
https://doi.org/10.4314/jonamp.v9i1.40069
https://doi.org/10.4314/jonamp.v9i1.40069
Autor:
Iheanyi S. Iwueze, Eleazar C. Nwogu
Publikováno v:
Global Journal of Mathematical Sciences; Vol 3, No 2 (2004); 83-98
An estimation procedure based on the Buys – Ballot (1847) table for time series decomposition is given in this paper. We give two alternative methods called the Chain Base Estimation and Fixed Base Estimation methods. Simulated examples are used to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::62427a7ae8a885dbc407e7f0b69e2bff
https://www.ajol.info/index.php/gjmas/article/view/21356
https://www.ajol.info/index.php/gjmas/article/view/21356