PeerJ Author

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Sa-Aat Niwitpong

PeerJ Author

Summary

Sa-Aat Niwitpong holds PhD in statistics from La Trobe University, Australia. He is currenly working on theory of statistics especially in confidence intervals for parameter of interest and model average confidence intervals

Agricultural Science Computational Biology Drugs & Devices Ecology Environmental Impacts Statistics

Past or current institution affiliations

King Mongkut's Institute of Technology North Bangk

Work details

Professor in Statistics

King Mongkut's Institute of Technology North Bangk

Applied Statistics

Lecturer at Department of Applied Statistics

PeerJ Contributions

Articles 18

October 16, 2024

Estimation methods for the variance of Birnbaum-Saunders distribution containing zero values with application to wind speed data in Thailand

Natchaya Ratasukharom, Sa-Aat Niwitpong, Suparat Niwitpong

https://doi.org/10.7717/peerj.18272 PubMed 39430565

February 29, 2024

Estimation of the percentile of Birnbaum-Saunders distribution and its application to PM2.5 in Northern Thailand

Warisa Thangjai, Sa-Aat Niwitpong, Suparat Niwitpong

https://doi.org/10.7717/peerj.17019 PubMed 38436012

November 9, 2023

Confidence intervals for ratio of means of delta-lognormal distributions based on left-censored data with application to rainfall data in Thailand

Warisa Thangjai, Sa-Aat Niwitpong

https://doi.org/10.7717/peerj.16397 PubMed 38025676

June 22, 2023

Estimating average wind speed in Thailand using confidence intervals for common mean of several Weibull distributions

Manussaya La-ongkaew, Sa-Aat Niwitpong, Suparat Niwitpong

https://doi.org/10.7717/peerj.15513 PubMed 37366422

December 7, 2022

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

Warisa Thangjai, Sa-Aat Niwitpong, Suparat Niwitpong

https://doi.org/10.7717/peerj.14498 PubMed 36523461

October 11, 2022

Estimation methods for the ratio of medians of three-parameter lognormal distributions containing zero values and their application to wind speed data from northern Thailand

Patcharee Maneerat, Pisit Nakjai, Sa-Aat Niwitpong

https://doi.org/10.7717/peerj.14194 PubMed 36248706

September 16, 2022

Bayesian estimation of rainfall dispersion in Thailand using gamma distribution with excess zeros

Wansiri Khooriphan, Sa-Aat Niwitpong, Suparat Niwitpong

https://doi.org/10.7717/peerj.14023 PubMed 36132216

May 18, 2022

Bayesian estimation for the mean of delta-gamma distributions with application to rainfall data in Thailand

Theerapong Kaewprasert, Sa-Aat Niwitpong, Suparat Niwitpong

https://doi.org/10.7717/peerj.13465 PubMed 35607452

February 17, 2022

Measurement of dispersion of PM 2.5 in Thailand using confidence intervals for the coefficient of variation of an inverse Gaussian distribution

Wasana Chankham, Sa-Aat Niwitpong, Suparat Niwitpong

https://doi.org/10.7717/peerj.12988 PubMed 35194534

February 4, 2022

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

Noppadon Yosboonruang, Sa-Aat Niwitpong, Suparat Niwitpong

https://doi.org/10.7717/peerj.12858 PubMed 35186465

December 20, 2021

Multiple comparisons of precipitation variations in different areas using simultaneous confidence intervals for all possible ratios of variances of several zero-inflated lognormal models

Patcharee Maneerat, Sa-Aat Niwitpong

https://doi.org/10.7717/peerj.12659 PubMed 35036147

July 2, 2021

Confidence intervals for the difference between the coefficients of variation of Weibull distributions for analyzing wind speed dispersion

Manussaya La-ongkaew, Sa-Aat Niwitpong, Suparat Niwitpong

https://doi.org/10.7717/peerj.11676 PubMed 34249509

June 23, 2021

Simultaneous confidence intervals for all pairwise differences between the coefficients of variation of rainfall series in Thailand

Noppadon Yosboonruang, Sa-Aat Niwitpong, Suparat Niwitpong

https://doi.org/10.7717/peerj.11651 PubMed 34221731

January 22, 2021

Estimating the average daily rainfall in Thailand using confidence intervals for the common mean of several delta-lognormal distributions

Patcharee Maneerat, Sa-Aat Niwitpong

https://doi.org/10.7717/peerj.10758 PubMed 33552739

September 21, 2020

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

Warisa Thangjai, Sa-Aat Niwitpong, Suparat Niwitpong

https://doi.org/10.7717/peerj.10004 PubMed 33005493

August 6, 2020

The Bayesian confidence intervals for measuring the difference between dispersions of rainfall in Thailand

Noppadon Yosboonruang, Sa-Aat Niwitpong, Suparat Niwitpong

https://doi.org/10.7717/peerj.9662 PubMed 32844064

February 11, 2020

A Bayesian approach to construct confidence intervals for comparing the rainfall dispersion in Thailand

Patcharee Maneerat, Sa-aat Niwitpong, Suparat Niwitpong

https://doi.org/10.7717/peerj.8502 PubMed 32095346

July 22, 2019

Measuring the dispersion of rainfall using Bayesian confidence intervals for coefficient of variation of delta-lognormal distribution: a study from Thailand

Noppadon Yosboonruang, Sa-aat Niwitpong, Suparat Niwitpong

https://doi.org/10.7717/peerj.7344 PubMed 31367487