QC_Capability: Calculate Summary of Quality Performance Parameters
In ggmtech/ggQC: Quality Control Charts for 'ggplot'

View source: R/03_Summay__Capability_FUNs.R

function to report listing of quality performance parameters

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QC_Capability(data = NULL, value = NULL, grouping = NULL,
  formula = NULL, method = "xBar.rBar", na.rm = FALSE, LSL = NULL,
  USL = NULL, digits = 2)

`data`	vector or dataframe, as indicated below for each chart type Individuals (XmR): vector of values; Studentized: dataframe
`value`	string, Studentized Charts, name of numeric vector in dataframe with values of interest.
`grouping`	string, Studentized Charts, name of single factor/variable to split the dataframe "values" by
`formula`	Studentized Charts: 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
`method`	string, calling one of the following methods: Individuals Charts: XmR, Studentized Charts: xBar.rBar, xBar.rMedian, xBar.sBar, xMedian.rBar
`na.rm`	a logical value indicating whether NA values should be stripped before the computation proceeds.
`LSL`	numeric, Customer's lower specification limit
`USL`	numeric, Customer's Upper specification limit Proc. Tolerance (sigma): Describes the number of your process sigma (from QC charting) that can fit in your customer's specification window (the larger the better). DNS (sigma): Distance to Nearest Specification (DNS) limit. Measure of how centered your process is and how close you are to the nearest process limit in sigma units. Cp: Describes how many times your 6 sigma process window (from QC charting) can fit in your customer's specification window (the larger the better) Cpk: Describes how centered your process is relative to customer specifications. How many times can you fit a 3 sigma window (from QC charting) between your process center and the nearest customer specification limit. Pp: Describes how many times your 6 sigma process window (overall standard deviation) can fit in your customer's specification window (the larger the better) Ppk: Describes how centered your process is relative to customer specifications. How many times can you fit a 3 sigma window (overall standard deviation) between your process center and the nearest customer specification limit.
`digits`	integer, how many digits to report.