Sentence examples for using a control chart from inspiring English sources
Using a control chart is a method of SPC for detecting unusual variations in a system.
Since Fst values that deviate from the average pattern can be considered as signatures of selection, LOWESS-smoothed data were analysed using a control chart approach.
Many studies have used Statistical Process Control (SPC) techniques, especially using a control chart as a tool, to manage the quality of care [ 16- 18].
This approach ensures earlier fault warnings while the traditional approach uses a control chart to assess the track twist condition.
In this study, we use a control chart in the literature for monitoring the variability of the transformed quality characteristics.
This LTFU study uses a unique design: it is an extension of a Phase III clinical study and also has elements of an epidemiological study (i.e., endpoints based on standard clinical practice; surveillance using searches from health registries); it uses a control chart method to determine whether vaccine effectiveness may be waning.
45 49 This is important, because care has to be taken to ensure that a sufficient number of data points are available for proper analysis, and that the correct rules are used: a control chart with 25 time points using 3SD control limits has an overall false positive probability of 6.5%.
The advantage of the penalized likelihood estimation is that it produces sparse and more focused estimates of the unknown population parameters which, when used in a control chart, can improve the performance of the resulting control chart.
These random variables are usually correlated and jointly distributed and cannot be controlled independently using a univariate control chart.
For this strategy, the use of a control chart was needed to prevent loss or damage to equipment.
We anticipate that a similar approach also can be used routinely for screening, batch control and similar analysis settings, for instance by using a multivariate control chart and determine presence of new peaks of significant intensity.
