Editing Standard score (section)

=== Cluster analysis and multidimensional scaling ===
"For some multivariate techniques such as multidimensional scaling and cluster analysis, the concept of distance between the units in the data is often of considerable interest and importance… When the variables in a multivariate data set are on different scales, it makes more sense to calculate the distances after some form of standardization."<ref name="EverittHothorn2011 ">{{Citation |last1= Everitt |first1= Brian |last2= Hothorn |first2= Torsten J |title= An Introduction to Applied Multivariate Analysis with R |year=2011|publisher= Springer
|isbn= 978-1441996497 }} </ref>