I came across answers to many of questions about Cluster Analysis in this platform. One area I still need clarification has to do with missing cases. I obtained DHS data and extracted sub-regional variables that my study considered useful. I further constructed variables from the data. I concern I have now is, after attempting Hierarchical Cluster Analysis on three surveys, missen cases are 181 (60%), 665(46%) and 534(43%) respectively. As a new person doing statistical analysis, especially the HCA, I need advice on addressing missing cases.
A lot of my questions, similar to yours got answered by this article.
This article gives a detailed explaination on Hirearchical Cluster Analysis.