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Data inspection using biplots
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DOI：10.1177/1536867X0500500206.png)
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摘要
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Biplots display interunit distances, as well as variances and correlations of variables of large datasets. They can be used as a tool to reveal clustering, multicollinearity, and multivariate outliers, and to guide the interpretation of principal component analyses (PCA). This article describes the uses of biplots and its implementation in Stata.
Keyword:
gr0011
biplot
biplot8
principal component analysis
exploratory data analysis
multivariate statistics
Euclidean distance
mahalanobis distance
relative variation diagram
projection
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