mqcs: Create an object of class 'mqcs' to perform statistical quality control.
This function is used to compute statistics required for to plot Multivariate Control Charts
Description
Create an object of class 'mqcs' to perform statistical quality control.
This function is used to compute statistics required for to plot Multivariate Control Charts
Usage
mqcs(x, method = "sw", ...)
Arguments
x
Object mqcd (Multivariante Quality Control Data)
method
Is the method employed to compute the covatiance matrix
in individual observation case. Two methods are used "sw"
for compute according to (Sullivan,Woodall 1996a) and "hm"
by (Holmes,Mergen 1993)