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Showing 1 to 2 of 2 for “"Structured correlation matrix"”.
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Efficient Unbiased Estimating Equations for Analyzing Structured Correlation Matrices
… an active area of research. For normal data, correlations fully quantify the dependence. And historically, maximum likelihood method has been very successful to estimate the correlations and unbiased estimating equation approach has become a popular alternative when there may be a departure …
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Bayesian Estimation of Correlation Matrices of Longitudinal Date and Variable Clustering
Estimation of correlation matrices is a challenging problem due to the notorious positive-definiteness constraint and high-dimensionality. Reparameterising Cholesky factors of correlation matrices in terms of angles or hyperspherical coordinates where the angles vary freely in the range [0, π) has …