Our blog editor extraordinaire Shelly Goodin brings you tips and information on technical content from our books that you can use immediately in your work. But what if you’re not there yet? What if you want to start with a 50,000-foot level view of analytics overall? Or learn how forecasting
For decades, data quality experts have been telling us poor quality is bad for our data, bad for our decisions, bad for our business and just plain all around bad, bad, bad – did I already mention it’s bad? So why does poor data quality continue to exist and persist?
A heat map is a graphical representation of a matrix that uses colors to represent values in the matrix cells. Heat maps often reveal the structure of a matrix. There are three common applications of visualizing matrices with heat maps: Visualizing a correlation or covariance matrix reveals relationships between variables.
