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rQCC (version 0.19.8.2)

Robust Quality Control Chart

Description

Constructs robust quality control chart based on the median and Hodges-Lehmann estimators (location) and the median absolute deviation (MAD) and Shamos estimators (scale) which are unbiased with a sample of finite size. For more details, see Park, Kim and Wang (2019). This work was partially supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (No. NRF-2017R1A2B4004169).

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Install

install.packages('rQCC')

Monthly Downloads

229

Version

0.19.8.2

License

GPL-2 | GPL-3

Issues

0

Pull Requests

0

Stars

2

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0

Maintainer

Chanseok Park

Last Published

August 2nd, 2019

Functions in rQCC (0.19.8.2)

robust.control.chart

Robust statistical control chart
n.times.eVar.of.shamos

Empirical variances of the Shamos estimator (times n)
factor.for.squared.mad

Finite-sample correction factor for the squared MAD (median absolute deviation) estimator under the normal distribution
n.times.eVar.of.mad

Empirical variances of the MAD (median absolute deviation) estimator (times n)
Shamos

Shamos estimate (Fisher consistent)
factor.for.squared.shamos

Finite-sample correction factor for the squared Shamos estimator under the normal distribution
n.times.eVar.of.HL3

Empirical variances of the Hodges-Lehmann (HL3) estimator (times n)
unbiased.shamos

Unbiased Shamos estimate
Hodges-Lehmann

Hodges-Lehmann estimate
control.limits

Control limits factor for X-bar chart
n.times.eVar.of.HL1

Empirical variances of the Hodges-Lehmann (HL1) estimator (times n)
n.times.eVar.of.HL2

Empirical variances of the Hodges-Lehmann (HL2) estimator (times n)
unbiased.squared.shamos

Unbiased squared Shamos estimate
n.times.eBias.of.shamos

Empirical biases of the Shamos estimator (times n)
unbiased.squared.mad

Unbiased squared MAD (median absolute deviation) estimate
correction.factor

Finite-sample correction factor for the standard deviation
n.times.eBias.of.mad

Empirical biases of the MAD (median absolute deviation) estimator (times n)
unbiased.mad

Unbiased MAD (median absolute deviation) estimate
empirical.variance

Empirical variances of robust estimators
relative.efficiency

Relative efficiency (RE)
n.times.eVar.of.median

Empirical variances of the median estimator (times n)
finite.sample.breakdown

Finite-sample breakdown point of various estimators