The Analysis of Bivariate Truncated Data Using the Clayton Copula Model

Wang Antai
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Wang Antai: Georgetown University

The International Journal of Biostatistics, 2007, vol. 3, issue 1, 18

Abstract: In individuals infected with human immunodeficiency virus (HIV), distributions of quantitative HIV RNA measurements may be highly left-censored due to values falling below assay detection limits (DL). It is of the interest to find the relationship between plasma and semen viral loads. To address this type of problem, we developed an empirical goodness-of-fit test to check the Clayton model assumption for bivariate truncated data. We also used truncated tau to estimate the dependence parameter in the Clayton model for this type of data. It turns out that the proposed methodology works for both truncated and fixed left censored bivariate data. The proposed test procedure is demonstrated using an HIV data set, and statistical inference is drawn based on corresponding test result.

Keywords: copula models; goodness-of-fit tests; the clayton model; bivariate truncated data (search for similar items in EconPapers)
Date: 2007
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Citations: View citations in EconPapers (2)

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DOI: 10.2202/1557-4679.1050

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