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Exercise

Interpreting biplots (1)

As stated in the video, the biplot() function plots both the principal components loadings and the mapping of the observations to their first two principal component values. The next couple of exercises will check your interpretation of the biplot() visualization.

Using the biplot() of the pr.out model, which two original variables have approximately the same loadings in the first two principal components?

Instructions

50 XP

Possible answers