Visualization with a biplot

Now visualize your PCA results. Maybe you can find groups in the data? The object pcaNews is loaded in your workspace.

Este exercício faz parte do curso

Machine Learning for Marketing Analytics in R

Create a biplot for your PCA results. The function selects the first two components automatically.
Scale the text with the factor 0.5.

Experimente este exercício completando este código de exemplo.

___ %>% ___(cex = ___)