We would like to thank Professor Elena Erosheva and Dr S McKay Curtis from the University of Washington for providing the R code for all the examples in chapters 2 (cluster analysis), 3 (multidimensional scaling), 5 (principal component analysis), 7 (factor analysis) and 8 (factor analysis for binary data).
The R code provided for those chapters is rich and well explained. It also compliments the analysis when possible with plots and additional information. We are grateful for their contributions in enriching the data analysis provided in the book.