I've spent a great deal of time in my consulting career railing against multiple systems of record, data silos and disparate versions of the truth. In the mid-1990s, I realized that Excel could only do so much. To quickly identify and ultimately ameliorate thorny data issues, I had to up
Are you thinking about completing a fall race? Whether it’s a 5K, 10K, or half or full marathon, it’s going to be here before you know it. I’ve been running for years, and I can tell you, there’s nothing like the motivation of signing up for a race to get
Typically a correlation analysis reports the correlations between all pairs of variables, including the variables with themselves. The resulting correlation matrix is square, symmetric, and has 1s on the main diagonal. But suppose you are interested in only specific combinations of variables. Perhaps you want the pairwise correlations between one
