Nonparametric estimation of the copula function with bivariate twice censored data

Autor: Toumi Samia, Boukeloua Mohamed, Idiou Nesrine, Benatia Fatah
Jazyk: English<br />Portuguese
Rok vydání: 2024
Předmět:
Zdroj: Boletim da Sociedade Paranaense de Matemática, Vol 42 (2024)
Druh dokumentu: article
ISSN: 0037-8712
2175-1188
DOI: 10.5269/bspm.64252
Popis: In this work, we are interested in the nonparametric estimation of the copula function in the presence of bivariate twice censored data. Assuming that the copula functions of the right and the left censoring variables are known, we propose an estimator of the joint distribution function of the variables of interest, then we derive an estimator of their copula function. Using a representation of the proposed estimator of the joint distribution function as a sum of independent and identically distributed variables, we establish the weak convergence of the empirical copula that we introduce.
Databáze: Directory of Open Access Journals