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.
Este exercício faz parte do curso
Multivariate Probability Distributions in R
Instruções do exercício
- 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.
Exercício interativo prático
Experimente este exercício completando este código de exemplo.
# Calculate the correlation matrix
cor.wine <- ___
# Round the matrix to two decimal places
___
# Plot the correlations
corrplot(___, method = "ellipse")