Description Usage Arguments Value Examples
These function are used to compute the upper and lower control limits.
1 | limits.beta(center, std.dev, sizes, conf)
|
center |
sample/group center statistic. |
std.dev |
within group standard deviation. |
sizes |
sample sizes. |
conf |
a numeric value used t o comput control limits, specifying the confidence level (0 < conf < 1) |
The function limits.beta
returns a matrix with lower and upper control limits.
1 2 | data(Montgomery2005)
limits.beta(center = 0.2313333, std.dev = 0.421685, sizes = Montgomery2005$Sample, conf = 0.9)
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