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The target value, T, of the quality characteristic. Upper control limit. Lower control limit. Plotted statistic. In statistical quality control, the CUSUM (or cumulative sum control chart) is a sequential analysis technique developed by E. S. Page of the University of Cambridge. It is typically used for monitoring change detection. [ 1]
Fan chart (time series) In time series analysis, a fan chart is a chart that joins a simple line chart for observed past data, by showing ranges for possible values of future data together with a line showing a central estimate or most likely value for the future outcomes. As predictions become increasingly uncertain the further into the future ...
The control chart is one of the seven basic tools of quality control. [6] Typically control charts are used for time-series data, also known as continuous data or variable data. Although they can also be used for data that has logical comparability (i.e. you want to compare samples that were taken all at the same time, or the performance of ...
Waters (name) Waters is a surname, derived from "Wat", or "Wa'ter", an old pronunciation of Gaultier or Walter, and similarly derived from the surname Watson ("Wat's son"). [1] The name is common from an early date in Wales and Yorkshire, [2] [3] as well as Shropshire, England. P.
In mathematics, a time series is a series of data points indexed (or listed or graphed) in time order. Most commonly, a time series is a sequence taken at successive equally spaced points in time. Thus it is a sequence of discrete-time data. Examples of time series are heights of ocean tides, counts of sunspots, and the daily closing value of ...
A nautical chart or hydrographic chart is a graphic representation of a sea region or water body and adjacent coasts or banks. Depending on the scale of the chart, it may show depths of water ( bathymetry) and heights of land ( topography ), natural features of the seabed, details of the coastline, navigational hazards, locations of natural and ...
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A chart (sometimes known as a graph) is a graphical representation for data visualization, in which "the data is represented by symbols, such as bars in a bar chart, lines in a line chart, or slices in a pie chart ". [ 1] A chart can represent tabular numeric data, functions or some kinds of quality structure and provides different info.