Conduct research within the University of the People Library and the internet on Hierarchal clustering and in your posting describe how you could implement an algorithm to cluster a data set using Hierarchal clustering. Your description should address the role of dendrograms in Hierarchal clustering.

Singh, Y., Bhatia, P. K., & Sangwan, O. (2007). A review of studies on machine learning techniques. International Journal of Computer Science and Security, 1(1), 70-84.

http://www.cscjournals.org/manuscript/Journals/IJCSS/Volume1/Issue1/IJCSS-7.pdf