Lower Control Limit: Count Data (c-chart)
Calculates lower control limit (LCL) for count data acquired over the same-sized area of opportunity. Negative values are reported as 0.
cBar_LCL(y, na.rm = FALSE, ...)
y |
Vector of count data. Each observation having the same-area of opportunity. |
na.rm |
a logical value indicating whether NA values should be stripped before the computation proceeds. |
... |
further arguments passed to or from other methods. |
A number; 3-sigma lower control limit (LCL). Function returns 0 for negative values.
set.seed(5555) y <- rpois(30, 9) cBar_LCL(y)
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