Number of PCs using scree plot
Now you will implement the elbow method relating to the change in the relative importance of the variance to choose the number of components. We will use the pca.state object containing the PCs of the state.x77 to implement this method.
Este exercício faz parte do curso
Multivariate Probability Distributions in R
Instruções do exercício
- Use the
screeplot()function to plot the relative importance of the variance explained by the eight PC's of thestate.x77dataset.
Exercício interativo prático
Experimente este exercício completando este código de exemplo.
# Draw screeplot
screeplot(___, type = "l")
grid()