The X-axis, which is the horizontal axis, on most Excel charts does not use numeric intervals like the vertical Y-axis does. The X-axis contains either strings of text or a date under each set of data ...

The usual practice in using a control chart to monitor a process is to take samples from the process with fixed sampling intervals. This article considers the properties of the X̄ chart when the ...

An alternative to the V-mask cusum chart is the one-sided cusum chart with a decision interval, which is sometimes referred to as the "computational form of the cusum chart." This example illustrates ...

Two years removed from showing us The Shape of Colour, instrumental prog mastermind Intervals has lifted the curtain on a follow-up effort. Titled The Way Forward, Aaron Marshall's third full-length ...