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Exercise

Calculating the correlation matrix

A correlation matrix is a generalization of the concept of correlation between two variables. If you are looking at a large number of variables, it can also be useful to visualize the correlation matrix to understand the dependence of the variables on each other.

Instructions

100 XP
  • Find the correlation matrix of the Alcohol, Malic, Ash, and Alcalinity variables from the wine data.
  • Round the values of the correlation matrix to two decimal places.
  • Use the corrplot() function to visualize the correlation matrix.