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qcr (version 0.1-18)

Quality control and reliability

Description

This package allows to generate Shewhart-type charts and to obtain numerical results of interest to the quality control of a process (involving continuous, attribute or count data). This package provides basic functionality for univariable and multivariable quality control analysis, including: xbar, xbar-one, S, R, ewna, cusum, mewna, mcusum and T2 charts.

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Version

Install

install.packages('qcr')

Monthly Downloads

384

Version

0.1-18

License

GPL (>= 2)

Maintainer

Miguel Flores

Last Published

May 30th, 2014

Functions in qcr (0.1-18)

dowel1

Dowel pin dataset
circuit

Circuit boards data
archery1

Target archery dataset in the ranking round (used as Phase I)
qcd

Quality Control Data
mqcs.mcusum

Function to plot mcusum chart
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
qcs.R

Function to plot Shewhart R chart
qcs.u

Function to plot Shewhart u chart
plates

Vickers hardness data
qcs.xbar

Function to plot Shewhart xbar chart
qcs.add

qcs.add Add a data.frame object with a qcs object
qcs.np

Function to plot Shewhart np chart
qcs.S

Function to plot Shewhart S chart
mqcs.mewma

Function to plot mewma chart
presion

Level of presion data
qcs

Quality Control Statistics
qcs.cusum

Function to plot cusum chart
orangejuice

Orange juice data
qcs.ewma

Function to plot ewma chart
qcs.c

Function to plot Shewhart c chart
plot.qcs

function to create a plotting 'qcs' object
pistonrings

Piston rings data
employment

Level of employment data
pcmanufact

Personal computer manufacturer data
oxidation

Oxidation Onset Temperature
state.control

This function is used for the state of the process is under control. Were removed from the sample observations that violate the rules of a process under control
qcs.one

Function to plot Shewhart xbar.one chart
counters

The performance of the counters data
qcr

Quality Control and Reability
qcs.p

Function to plot Shewhart xbar chart
plot.mqcs

Plot method for 'mqcs' objects
mqcs.t2

Function to plot t2 Hotelling chart
mqcd

Multivariante Quality Control Data