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- W4301447634 abstract "When modeling the distribution of a multivariate continuous random vector using the so-called emph{copula approach}, it is not uncommon to have ties in the coordinate samples of the available data because of rounding or lack of measurement precision. Yet, the vast majority of existing inference procedures on the underlying copula were both theoretically derived and practically implemented under the assumption of no ties. Applying them nonetheless can lead to strongly biased results. Some of the existing statistical tests can however be adapted to provide meaningful results in the presence of ties. It is the case of some tests of exchangeability, radial symmetry, extreme-value dependence and goodness of fit. Detailed algorithms for computing approximate p-values for the modified tests are provided and their finite-sample behaviors are empirically investigated through extensive Monte Carlo experiments. An illustration on a real-world insurance data set concludes the work." @default.
- W4301447634 created "2022-10-05" @default.
- W4301447634 creator A5071107317 @default.
- W4301447634 date "2016-09-18" @default.
- W4301447634 modified "2023-09-26" @default.
- W4301447634 title "Some copula inference procedures adapted to the presence of ties" @default.
- W4301447634 doi "https://doi.org/10.48550/arxiv.1609.05519" @default.
- W4301447634 hasPublicationYear "2016" @default.
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