Abstract
Gaussian copulas are handy tool in many applications. However, when dimension of data is large, there are too many parameters to estimate. Use of special variance structure can facilitate the task. In many cases, especially when different data types are used. Pearson correlation is not a suitable measure of dependence. We study the properties of Kendall and Spearman correlation coefficients-which have better properties and are invariant under monotone transformations-used at the place of Pearson coefficients. Spearman correlation coefficient appears to be more suitable for use in such complex applications. (C) 2009 Elsevier B.V. All rights reserved.
Original language | English |
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Pages (from-to) | 3942-3946 |
Number of pages | 5 |
Journal | Journal of Statistical Planning and Inference |
Volume | 139 |
Issue number | 11 |
DOIs | |
Publication status | Published - 1-Nov-2009 |
Event | 8th Tartu Conference on Multivariate Statistics/6th Conference on Multivariate Distributions with Fixed Marginals - Tartu, Estonia Duration: 26-Jun-2007 → 29-Jun-2007 |
Keywords
- Copulas
- Correlation
- Kendall
- Spearman