请教 主成份分析如何在stata中实现

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help pca

还不清楚的话，可以参考下面两个文章：

Measurement in the Social Sciences (TT 2009)
Appendix 2.1: PCA Extended Examples - Stata
Dave Armstrong
University of Oxford
Department of Politics and International Relations
e: david.armstrong@politics.ox.ac.uk
w: http://www.quantoid.net/Oxford.php
May 7, 2009
http://www.quantoid.net/appendix2.1.pdf

Constructing socio-economic status indices: how to use principal components analysis
Seema Vyas and Lilani Kumaranayake
http://heapol.oxfordjournals.org/cgi/content/full/21/6/459

help pca

还不清楚的话，可以参考下面两个文章：

Measurement in the Social Sciences (TT 2009)
Appendix 2.1: PCA Extended Examples - Stata
Dave Armstrong
University of Oxford
Department of Politics and International Relations
e: david.armstrong@politics.ox.ac.uk
w: http://www.quantoid.net/Oxford.php
May 7, 2009
http://www.quantoid.net/appendix2.1.pdf

Constructing socio-economic status indices: how to use principal components analysis
Seema Vyas and Lilani Kumaranayake
http://heapol.oxfordjournals.org/cgi/content/full/21/6/459

actually, you may also refer 陳峰's "現代醫學統計方法"(人民衛生出版社), which is very very clear

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