Median of Subgroup Ranges Lower Control Limit (LCL)
Calculates the median of subgroup range Lower control limit (LCL) used when constructing a xBar_rMedian chart.
rMedian_LCL(data = data, value = value, grouping = grouping, formula = NULL, ...)
data |
data frame to be processed |
value |
numeric vector in a data frame with values of interest. |
grouping |
single factor/variable to split the data frame "values" by. |
formula |
a formula, such as y ~ x1 + x2, where the y variable is numeric data to be split into groups according to the grouping x factors/variables |
... |
further arguments passed to or from other methods. |
A number; median of subgroup range lower control limit (LCL).
set.seed(5555)
df <- data.frame(v=rnorm(60, 0, 1), g=rep(c("A","B","C","D","E"), each=12))
rMedian_LCL(data = df, formula = v~g)Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.