A note on the CLT of the LSS for sample covariance matrix from a spiked population model
A note on the CLT of the LSS for sample covariance matrix from a spiked population model
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关于来自尖峰总体模型的样本协方差矩阵的 LSS 的 CLT 的注释
DOI:
10.1016/j.jmva.2014.04.021
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发表时间:
2013-04
影响因子:
1.6
通讯作者:
Yao Jian-Feng
中科院分区:
文献类型:
--
作者:
Wang Qinwen;Silverstein Jack W.;Yao Jian-Feng
In this note, we establish an asymptotic expansion for the centering parameter appearing in the central limit theorems for linear spectral statistic of large-dimensional sample covariance matrices when the population has a spiked covariance structure. As an application, we provide an asymptotic power function for the corrected likelihood ratio statistic for testing the presence of spike eigenvalues in the population covariance matrix. This result generalizes an existing formula from the literature where only one simple spike exists.
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DOI:
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发表时间:
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影响因子:
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