Use the Cars93 data set from the built-in package "MASS" available in R.

You are to analyse the data using unsupervised learning.

1.Preparing the data

2.Principal Components Analysis.

3.K-means and Hierarchical Clustering

4.Decision Trees.

kindly post :

oInclude discussions, diagrams, tables, etc. that are relevant to your analysis.

A copy of the R code used in doing your analysis.

oInclude any relevant title lines (e.g. , date, etc.) as #comments as well.

oWhen I implement your code line-by-line, I expect to have smooth execution