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.
本练习是课程的一部分
Multivariate Probability Distributions in R
练习说明
- 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.
交互式实操练习
通过完成这段示例代码来试试这个练习。
# Calculate the correlation matrix
cor.wine <- ___
# Round the matrix to two decimal places
___
# Plot the correlations
corrplot(___, method = "ellipse")