npqcs

summary.npqcs

print.npqcs

Object npqcd (Non Parametric Multivariante Quality Control Data)

Character string which determines the depth function used. 
method can be "Tukey" (the default), "Liu", "Mahalanobis", "RP" Random Project or "LD" Likelihood depth.

method

arguments passed to or from methods.

Create an object of class 'npqcs' to perform statistical quality control.
This function is used to compute statistics required to plot 
Non Parametric Multivariate Control Charts

Univariate and multivariate SQC tools that completes and increases
the SQC techniques available in R. Apart from integrating different R packages
devoted to SQC ('qcc','MSQC'), provides nonparametric tools that are highly
useful when Gaussian assumption is not met.
This package computes standard univariate control charts for individual measurements,
'X-bar', 'S', 'R', 'p', 'np', 'c', 'u', 'EWMA' and 'CUSUM'. In addition, it
includes functions to perform multivariate control charts such as 'Hotelling T2',
'MEWMA' and 'MCUSUM'. As representative feature, multivariate nonparametric
alternatives based on data depth are implemented in this package: 'r', 'Q' and
'S' control charts. In addition, Phase I and II control charts for functional
data are included. This package also allows the estimation of the most complete
set of capability indices from first to fourth generation, covering the nonparametric
alternatives, and performing the corresponding capability analysis graphical outputs,
including the process capability plots. See Flores et al. (2021) <doi:10.32614/RJ-2021-034>.

npqcs: Statistical Quality Control Object

Description

Usage

Arguments