A Symmetric/Asymmetric Bimodal Extension Based on the Logistic Distribution: Properties, Simulation and Applications

被引:1
作者
Cortes, Isaac E. [1 ]
Venegas, Osvaldo [2 ]
Gomez, Hector W. [3 ]
机构
[1] Univ Sao Paulo, Interinst Grad Program Stat, BR-05508090 Sao Paulo, Brazil
[2] Univ Catolica Temuco, Fac Ingn, Dept Ciencias Matemat & Fis, Temuco 4780000, Chile
[3] Univ Antofagasta, Fac Ciencias Basicas, Dept Matemat, Antofagasta 1240000, Chile
关键词
bimodal distribution; logistic distribution; maximum likelihood; symmetry; asymmetric; SKEW; INFERENCE;
D O I
10.3390/math10121968
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
In this paper, we introduce bimodal extensions, one symmetric and one asymmetric, of the logistic distribution. We define this new density and study some basic properties. We draw inferences from the moment estimator and maximum likelihood approaches. We present a simulation study to assess the behaviour of the moment and maximum likelihood estimators. We also study the singularity of the Fisher information matrix for particular cases. We offer applications in real data and compare them with a mixture of logistics distributions.
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页数:17
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