updates: Updates of a Control Chart
Description
Computes updates of a control chart using the given parameters and the given data.
Usage
updates(chart, xi, data)
"updates"(chart, xi, data)
"updates"(chart, xi, data)
Arguments
xi
the parameters used for running the chart.
Value
A vector of the same length as data.
Methods (by class)
-
SPCchart
: Standard method which simply first applies
getresiduals from the data model.
-
SPCShew
: Computes the updates taking into account if the
chart is one-sided or two-sided.