Test of linear trend in eigenvalues of a covariance matrix with application to data analysis.
Test of linear trend in eigenvalues of a covariance matrix with application to data analysis.
复制标题
协方差矩阵特征值的线性趋势检验及其在数据分析中的应用。
DOI:
10.1111/j.2044-8317.1996.tb01090.x
复制
发表时间:
1996
期刊:
影响因子:
--
通讯作者:
Yuan,KH
中科院分区:
文献类型:
--
作者:
Bentler,PM;Yuan,KH
Principal component analysis and factor analysis are the most widely used tools for dimension reduction in data analysis. Both methods require some good criterion to judge the number of dimensions to be kept. The classical method focuses on testing the equality of eigenvalues. As real data hardly have this property, practitioners turn to somead hoccriterion in judging the dimensionality of their data. One such popular method, the ‘scree test’ or ‘scree plot’ as described in many texts and statistical programs, is based on the trend in eigenvalues of sample covariance (correlation) matrix. The principal components or common factors corresponding to eigenvalues which exhibit a slow linear decrease arc discarded in further data analysis. This paper develops a formal statistical test for the ‘scree plot’. A special case of this test is the classical test for equality of eigenvalues which has been suggested in several texts as the criterion to decide the number of principal components to retain. Comparisons between equality of eigenvalues and the slow linear decrease in eigenvalues on some classical examples support the hypothesis of slow linear decrease. A physical background to such a phenomenon is also suggested.
DOI:
--
发表时间:
1967
期刊:
影响因子:
--
作者:
G. Wernimont
通讯作者:
G. Wernimont
DOI:
--
发表时间:
1994
期刊:
影响因子:
--
作者:
K. Yuan;P. Bentler
通讯作者:
P. Bentler
影响因子:
3.8
作者:
J. Horn;R. Engstrom
通讯作者:
R. Engstrom