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.
Latihan ini adalah bagian dari kursus
Multivariate Probability Distributions in R
Petunjuk latihan
- 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.
Latihan interaktif praktis
Cobalah latihan ini dengan menyelesaikan kode contoh berikut.
# Calculate the correlation matrix
cor.wine <- ___
# Round the matrix to two decimal places
___
# Plot the correlations
corrplot(___, method = "ellipse")