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Found 29 results

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Filtros: Autor é Carlos A. Coelho  [Clear All Filters]
Unpublished
Coelho CA, Marques FJ.  2007.  The advantage of decomposing elaborate hypotheses on covariance matrices into conditionally independent hypotheses in building near-exact distributions for the test statistics. Preprint.
Coelho CA, Arnold BC, Marques FJ.  2010.  Another look at the exact and near-exact distributions for the most common likelihood ratio test statistics used in multivariate analysis. Preprint. Abstract
Marques FJ, Coelho CA, Marques P.  2011.  The block-matrix sphericity test - exact and near-exact distributions for the test statistic. Preprint. Abstract
Grilo LM, Coelho CA.  2005.  Development and comparative study of two near-exact approximations to the distribution of the product of an odd number of independent Beta random variables. Preprint. Abstract
Coelho CA, Arnold B, Marques FJ.  2009.  The distribution of the product of powers of independent uniform random variables. Preprint. Abstract
Coelho CA, Oliveira S, Marques FJ.  2011.  Exact and near-exact distributions for the likelihood ratio test statistics used to test for stationarity and circularity in multivariate models. Preprint. Abstract
Marques FJ, Coelho CA, de Carvalho M.  2012.  Exact and near-exact distributions of positive linear combinations of independent Gumbel random variables. Preprint. Abstract
Marques FJ, Coelho CA.  2010.  The exact and near-exact distributions of the likelihood ratio statistic for the block sphericity test. Preprint. Abstract
Marques FJ, Coelho CA.  2011.  The exact and near-exact distributions of the likelihood ratio test statistic for testing circular symmetry. Preprint. Abstract
Coelho CA.  2007.  The exact and near-exact distributions of the product of independent Beta random variables whose second parameter is rational. Preprint. Abstract
Coelho CA, Marques FJ, Arnold BC.  2011.  A general approach to the exact and near-exact distributions of the main likelihood ratio test statistics used in the complex multivariate Normal setting. Preprint. Abstract
Marques FJ, Coelho CA, Arnold BC.  2008.  A general near-exact distribution theory for the most common likelihood ratio test statstics used in Multivariate Statistics. Preprint. Abstract
Coelho CA, Arnold BC.  2012.  Instances of the Meijer G and Fox H functions and the distribution of the product of independent beta random variables with finite representations. Preprint. Abstract
Coelho CA.  2005.  The joint characterization of discrete and continuous “waiting times” through their reciprocal relationships. Preprint. Abstract
Coelho CA, Alberto RP, Grilo LM.  2005.  A mixture of Generalized Integer Gamma distributions as the exact distribution of the product of an odd number of independent Beta random variables. Applications. Preprint. Abstract
Coelho CA, Marques FJ.  2011.  The multi-sample block-scalar sphericity test - exact and near-exact distributions for its likelihood ratio test statistic. Preprint. Abstract
Coelho CA, Marques FJ.  2007.  Near-exact approximations for the likelihood ratio test statistic for testing equality of several variance-covariance matrices. Preprint. Abstract
Coelho CA, Marques FJ.  2007.  Near-exact distributions for the independence and sphericity likelihood ratio test statistics. Preprint.
Coelho CA, Marques FJ.  2009.  Near-exact distributions for the likelihood ratio test statistic for testing equality of several variance-covariance matrices (revisited). Preprint. Abstract
Marques FJ, Coelho CA.  2009.  Near-exact distributions for the likelihood ratio test statistic of the multi-sample block-matrix sphericity test. Preprint. Abstract
Marques FJ, Coelho CA.  2006.  Near-exact distributions for the sphericity likelihood ratio test statistic. Preprint. Abstract
Marques FJ, Coelho CA.  2008.  O teste de esfericidade para várias amostras Como usar a decomposição da hipótese nula na construção de aproximações quase-exactas para a estatística de teste. Preprint.
Coelho CA, Mexia JT.  2005.  On the distribution of the product and ratio of independent central and doubly non-central Generalized Gamma Ratio random variables. Preprint. Abstract
Coelho CA, Alberto RP.  2012.  On the distribution of the product of independent beta random variables - applications. Preprint. Abstract
Coelho CA, Mexia JT.  2006.  On the exact and near-exact distributions of statistics used in generalized F tests. Preprint. Abstract