Generating random correlation matrices based on partial correlations

Generating random correlation matrices based on partial correlations
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DOI:
10.1016/j.jmva.2005.05.010
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发表时间:
2006-11-01
影响因子:
1.6
通讯作者:
Joe, Harry
Joe, Harry
中科院分区:
数学2区
文献类型:
--
作者:
Joe, Harry

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d维正定相关矩阵R =(rho(ij))可以根据相关性rho(i,i+1)(i = 1,.,d - 1,以及偏相关性rho(i,i+1,. j-1),其中j -1>= 2。这些((d)(2))参数可以独立地取区间(-1,1)中的值。因此,我们可以通过选择独立分布F-ij,1来生成随机正定相关矩阵
A d-dimensional positive definite correlation matrix R = (rho(ij)) can be parametrized in terms of the correlations rho(i,i+1) for i = 1,..., d - 1, and the partial correlations rho(ij\i+1,.... j-1) for j - i >= 2. These ((d)(2)) parameters can independently take values in the interval (- 1, 1). Hence we can generate a random positive definite correlation matrix by choosing independent distributions F-ij, 1