This post recommends using Trellis plots instead of 3D bar charts for three-dimensional (three variable) data. In Winner of the Bad Graph Contest Announced, I promised to present alternatives to ...

We also cover the equations and constants for the X-bar and R (Range) chart, and work an example of this important control chart. Industry 4.0 Academy Disclaimer The courses offered in this catalog ...

Control chart techniques have been widely used in industries to monitor a process in quality improvement. Whenever we deal with variables data, we usually employ a combination of X-bar chart and R ...

Image: 200degrees/Adobe Stock Area charts do a great job of exposing trends in Microsoft Excel data. The good news is that they’re easy to create; the bad news is that the default chart is often ...