Top network posts

• 141 Is there an intuitive interpretation of $A^TA$ for a data matrix $A$?
• 126 PCA and proportion of variance explained
• 123 What correlation makes a matrix singular and what are implications of singularity or near-singularity?
• 109 How to visualize what canonical correlation analysis does (in comparison to what principal component analysis does)?
• 105 What's the difference between principal component analysis and multidimensional scaling?
• 81 Loadings vs eigenvectors in PCA: when to use one or another?
• 78 How does centering the data get rid of the intercept in regression and PCA?
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