Results 1 to 10 of about 13,408 (180)

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

open access: yesPeerJ, 2019
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 number of areas and so is an important tool in statistical ...
Noppadon Yosboonruang   +2 more
doaj   +5 more sources

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

open access: yesPeerJ, 2023
Thailand is a country that is prone to both floods and droughts, and these natural disasters have significant impacts on the country’s people, economy, and environment. Estimating rainfall is an important part of flood and drought prevention.
Warisa Thangjai, Sa-Aat Niwitpong
doaj   +5 more sources

Updated fiducial distribution of parameters in the associated delta-lognormal population [PDF]

open access: yesPLoS ONE
In this paper we consider a special kind of semicontinous distribution. We try to concern with the situation where the probability of zero observation is associated with the location and scale parameters in lognormal distribution. We first propose a goodness-of-fit test to ensure that the data can be fit by the associated delta-lognormal distribution ...
Yufan Wang, Xingzhong Xu
doaj   +4 more sources

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

open access: yesPeerJ, 2022
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 constructed to estimate rainfall in Thailand. The confidence interval for the
Warisa Thangjai   +2 more
doaj   +4 more sources

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

open access: yesPeerJ, 2022
Rainfall fluctuation makes precipitation and flood prediction difficult. The coefficient of variation can be used to measure rainfall dispersion to produce information for predicting future rainfall, thereby mitigating future disasters.
Noppadon Yosboonruang   +2 more
doaj   +4 more sources

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

open access: yesPeerJ, 2021
The delta-lognormal distribution is a combination of binomial and lognormal distributions, and so rainfall series that include zero and positive values conform to this distribution. The coefficient of variation is a good tool for measuring the dispersion
Noppadon Yosboonruang   +2 more
doaj   +2 more sources

Bayesian interval estimations for the mean of delta-three parameter lognormal distribution with application to heavy rainfall data.

open access: yesPLoS ONE, 2022
Flash flooding is caused by heavy rainfall that frequently occurs during a tropical storm, and the Thai population has been subjected to this problem for a long time. The key to solving this problem by planning and taking action to protect the population
Patcharee Maneerat   +2 more
doaj   +2 more sources

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

open access: yesPeerJ, 2020
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 rainfall from two areas or times.
Noppadon Yosboonruang   +2 more
doaj   +2 more sources

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

open access: yesPeerJ, 2020
Natural disasters such as drought and flooding are the consequence of severe rainfall fluctuation, and rainfall amount data often contain both zero and positive observations, thus making them fit a delta-lognormal distribution.
Patcharee Maneerat   +2 more
doaj   +2 more sources

On comparing design-based estimation versus model-based prediction to assess the abundance of biological populations

open access: yesEcological Indicators, 2022
Assessing the abundance of biological populations is a central technical challenge in ecology, whether fundamental or applied. Although the question faced is simple, it is actually a complicated topic that has produced a vast array of methods.
Philippe Aubry, Charlotte Francesiaz
doaj   +1 more source

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