In the last post, we talked about creating the requirements for the data analytics, and profiling the data prior to load. Now, let’s consider how to filter, format and deliver that data to the analytics application. Filter – the act of selecting the data of interest to be used in the
Suppose that you compute the correlation matrix (call it R1) for a set of variables x1, x2, ..., x8. For some reason, you later want to compute the correlation matrix for the variables in a different order, maybe x2, x1, x7,..., x6. Do you need to go back to the
“What we do to our children they will do to society.” Greek philosopher Pliny the Elder said that more than 2,000 years ago, and it’s just as true today. In 2013, more than 600,000 children in the US were confirmed victims of maltreatment in the home, according to U.S. Department
