[HTML][HTML] Performance of some estimators of relative variability

R Ospina, F Marmolejo-Ramos - Frontiers in Applied Mathematics …, 2019 - frontiersin.org
The classic coefficient of variation (CV) is the ratio of the standard deviation to the mean and
can be used to compare normally distributed data with respect to their variability, this …

[HTML][HTML] 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 …

[HTML][HTML] 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 …

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

N Yosboonruang, S Niwitpong, S Niwitpong - PeerJ, 2019 - peerj.com
Since rainfall data series often contain zero values and thus follow a delta-lognormal
distribution, the coefficient of variation is often used to illustrate the dispersion of rainfall in a …

[HTML][HTML] Efficiency evaluation of cultural services in the Czech Republic via multi-criteria decision analysis

R Vavrek, J Bečica - Sustainability, 2020 - mdpi.com
Culture is an irreplaceable means of transferring information between generations. The
development of culture, the cultural environment, and the effect of culture exist over the long …

[HTML][HTML] Confidence intervals for common coefficient of variation of several Birnbaum–Saunders distributions

W Puggard, SA Niwitpong, S Niwitpong - Symmetry, 2022 - mdpi.com
The Birnbaum–Saunders (BS) distribution, also known as the fatigue life distribution, is right-
skewed and used to model the failure times of industrial components. It has received much …

Adjusted generalized confidence intervals for the common coefficient of variation of several normal populations

W Thangjai, SA Niwitpong… - … in Statistics-Simulation and …, 2020 - Taylor & Francis
This paper proposes the novel approaches to construct confidence intervals for the common
coefficient of variation (CV) of several normal populations using the concepts of the adjusted …

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

N Yosboonruang, SA Niwitpong, S Niwitpong - PeerJ, 2020 - peerj.com
The coefficient of variation is often used to illustrate the variability of precipitation. Moreover,
the difference of two independent coefficients of variation can describe the dissimilarity of …

[HTML][HTML] An analysis of usage of a multi-criteria approach in an athlete evaluation: An evidence of NHL attackers

R Vavrek - Mathematics, 2021 - mdpi.com
The presented research focuses on the commonly used Technique for Order of Preference
by Similarity to Ideal Solution (TOPSIS), which is applied to an evaluation of a basic set of …

Simultaneous confidence intervals for all differences of coefficients of variation of two-parameter exponential distributions

W Thangjai, S Niwitpong - Thailand Statistician, 2020 - ph02.tci-thaijo.org
In this paper, a construction of simultaneous confidence intervals for differences of
coefficients of variation of k independent two-parameter exponential distributions is …