Top network posts

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