Rainfall variability across Nigeria is influenced by large-scale Atlantic and Pacific climate teleconnections, including the Atlantic Multidecadal Oscillation (AMO), El Niño-Southern Oscillation (ENSO), and North Atlantic Oscillation (NAO). Although rainfall–teleconnection relationships are well documented in West Afri...
Adensile Ridwan Raheem, A. Taiwo, T. Olatayo et al.· FUDMA Journal of Sciences· 0 citations
Identifying influential observations is crucial in regression analysis because such points can distort parameter estimates, prediction accuracy, and overall statistical inference. Traditional diagnostics such as Cook’s Distance and DFFITs, developed under the Ordinary Least Squares (OLS) framework, perform poorly when...
G. Oluwarohunbi, T. Olatayo, A. Taiwo· International Journal of Dev...· 0 citations
Monthly rainfall in Nigeria exhibits pronounced annual seasonality, season-dependent variability, and changes in temporal dependence that may not be adequately represented by a single fixed-parameter model. This study presents a Bayesian modelling framework for monthly rainfall records from 37 Nigerian Meteorological A...
Augustine Yomi Oyenuga, T. Olatayo, A. Taiwo et al.· FUDMA Journal of Sciences· 0 citations
This study proposes a Robust Least Quantile of Squares–New Two-Parameter (LQS-NTP) estimator for addressing multicollinearity and extreme observations in linear regression models. The proposed estimator combines the high-breakdown robustness of the Least Quantile of Squares (LQS) method with the shrinkage properties of...
Adewale Abdulahi Titilola, T. Olatayo, A. Taiwo· International Journal of Dev...· 0 citations
Regression analysis is a powerful tool for modeling relationships between variables, but its reliability hinges on meeting key assumptions of the classical linear regression model. When multicollinearity and outliers are simultaneously present, traditional estimation techniques such as Ordinary Least Squares (OLS) beco...
Olanrewaju O. Oladiran, T. Olatayo, A. Taiwo· International Journal of Dev...· 0 citations
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