Attribution of streamflow changes during 1961–2019 in the Upper Yangtze and the Upper Yellow River basins

S Wen, B Su, J Huang, Y Wang, S Treu, F Jiang… - Climatic Change, 2024 - Springer
Climate change has remarkable global impacts on hydrological systems, prompting the
need to attribute past changes for better future risk estimation and adaptation planning. This …

Bayesian computation for the common coefficient of variation of delta-lognormal distributions with application to common rainfall dispersion in Thailand

N Yosboonruang, SA Niwitpong, S Niwitpong - PeerJ, 2022 - peerj.com
Rainfall fluctuation makes precipitation and flood prediction difficult. The coefficient of
variation can be used to measure rainfall dispersion to produce information for predicting …

[PDF][PDF] Bayesian confidence interval for ratio of the coefficients of variation of normal distributions: A practical approach in civil engineering

W Thangjai, SA Niwitpong… - Civil Engineering …, 2022 - scholar.archive.org
The coefficient of variation (CV) is a useful statistical tool for measuring the relative variability
between multiple populations, while the ratio of CVs can be used to compare the dispersion …

Estimation of common percentile of rainfall datasets in Thailand using delta-lognormal distributions

W Thangjai, SA Niwitpong, S Niwitpong - PeerJ, 2022 - peerj.com
Weighted percentiles in many areas can be used to investigate the overall trend in a
particular context. In this article, the confidence intervals for the common percentile are …

Confidence intervals for the common coefficient of variation of rainfall in Thailand

W Thangjai, SA Niwitpong, S Niwitpong - PeerJ, 2020 - peerj.com
The log-normal distribution is often used to analyze environmental data like daily rainfall
amounts. The rainfall is of interest in Thailand because high variable climates can lead to …

[PDF][PDF] A Bayesian approach for estimation of coefficients of variation of normal distributions

W Thangjai, SA Niwitpong, S Niwitpong - Sains Malaysiana, 2021 - ukm.my
The coefficient of variation is widely used as a measure of data precision. Confidence
intervals for a single coefficient of variation when the data follow a normal distribution that is …

Confidence intervals for common signal-to-noise ratio of several log-normal distributions

W Thangjai, SA Niwitpong - Iranian Journal of Science and Technology …, 2020 - Springer
Log-normal distribution is used widely in application fields such as economics and finance.
This paper considers confidence interval estimates for common signal-to-noise ratio of log …

Bayesian estimation for the coefficients of variation of Birnbaum–Saunders distributions

W Puggard, SA Niwitpong, S Niwitpong - Symmetry, 2021 - mdpi.com
The Birnbaum–Saunders (BS) distribution, which is asymmetric with non-negative support,
can be transformed to a normal distribution, which is symmetric. Therefore, the BS …

Simulation comparison of modified confidence intervals based on robust estimators for coefficient of variation: skewed distributions case with real applications

HE Akyüz, MOA Abu-Shawiesh… - Arab Journal of Basic and …, 2024 - Taylor & Francis
In this article, we propose confidence intervals for the population coefficient of variation
based on some robust estimators such as trimmed mean, winsorized mean, Hodges …

[HTML][HTML] Estimating the Confidence Interval for the Common Coefficient of Variation for Multiple Inverse Gaussian Distributions

W Chankham, SA Niwitpong, S Niwitpong - Symmetry, 2024 - mdpi.com
The inverse Gaussian distribution is a two-parameter continuous probability distribution with
positive support, which is used to account for the asymmetry of the positively skewed data …