BzST | Business Analytics, Statistics, Teaching

A colleague who knows my fascination with data visualization pointed me to a recent interesting video created by Geoff McGhee on Journalism ...

You might ask yourself how on earth I have time for an entry during the last day of classes. Well, I don't. That's why I am doing it...

Today much data is gathered from the web. Data from websites often tend to be hierarchical in nature: For example, on Amazon we have categor...