Description Usage Arguments Value Author(s) References See Also Examples
Trial limits for the Lowess-Range Chart, and an estimator of the process standard deviation. This chart is appropriate for subgroups of size 1.
1 |
x |
a numeric vector containing the process measurements |
sigma |
(optional) the standard deviation of the measurements |
plotit |
logical value indicating whether a plot should be produced |
an estimate of the standard deviation and a plot of the chart
W.J. Braun
Braun, W.J. (2002) The LR-chart: An Alternative to the MR-chart.
1 |
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