Package index

Package overview

IQCC-package IQCC

IQCC: Improved Quality Control Charts

Univariate location and dispersion

Shewhart charts and distribution-aware limits for continuous measurements.

cchart.Xbar()

X-bar Control Chart for Phase I and Phase II

cchart.Xbar1()

Phase I X-bar Shewhart Control Chart

cchart.Xbar2()

Phase II X-bar Shewhart Control Chart

cchart.Xbar_R()

X-bar and R Control Charts

cchart.R()

Range Control Chart

r_shewhart_limits()

Conventional Three-Sigma Limits for the R Chart

r_exact_limits()

Exact Probability Limits for the R Chart

cchart.S()

Standard-Deviation Control Chart

alpha.risk()

False-Alarm Probability for the Three-Sigma R Chart

c4()

Bias Correction Constant for Sample Standard Deviation

d2()

Mean of the Relative Range

d3()

Standard Deviation of the Relative Range

Attribute control charts

Limits and false-alarm calculations for binomial and Poisson monitoring.

pchart_limits()

Probability Limits for p Charts

pchart_alpha_risk()

Exact False-Alarm Risk for p-Chart Limits

cchart.p()

p-chart

uchart_limits()

Probability Limits for u Charts

uchart_alpha_risk()

Exact False-Alarm Risk for u-Chart Limits

cchart.u()

u-chart

Double-sampling np charts

Exact-binomial design, performance evaluation, and operational monitoring.

dsnp_prob_accept()

Double-Sampling np Chart: Acceptance Probability

dsnp_arl()

Double-Sampling np Chart: Average Run Length

dsnp_ass()

Double-Sampling np Chart: Average Sample Size

dsnp_limits()

Double-Sampling np Chart: Limit Search

dsnp_design() print(<dsnp_design>)

Double-Sampling np Chart: Complete Design Search

cchart.DSnp()

Double-Sampling np Control Chart

print(<cchart.DSnp>) summary(<cchart.DSnp>) print(<summary.cchart.DSnp>)

Print and Summarize a Double-Sampling np Control Chart

plot(<cchart.DSnp>)

Plot a DS-np Control Chart

Multivariate monitoring

Hotelling T-squared and generalized variance charts.

T2.1()

Hotelling T² Statistic for Phase I

T2.2()

Hotelling T² Statistic for Phase II

cchart.T2.1()

Phase I Hotelling T² Control Chart

cchart.T2.2()

Phase II Hotelling T² Control Chart

gv_stat()

Generalized Variance by Subgroup

gv_limits()

Generalized Variance Control Limits

gv_alpha_risk()

False-Alarm Risk for Generalized Variance Charts

cchart.GV() plot(<cchart.GV>)

Generalized Variance Control Chart

trv_stat()

Trace Statistic for Multivariate Variability

trv_limits()

Trace-Statistic Control Limits

trv_alpha_risk()

False-Alarm Risk for Trace-Statistic Charts

cchart.trV() plot(<cchart.trV>) print(<cchart.trV>) summary(<cchart.trV>) print(<summary.cchart.trV>)

Trace-Statistic Control Chart

print(<cchart.GV>) summary(<cchart.GV>) print(<summary.cchart.GV>)

Print and Summarize a Generalized Variance Control Chart

Data preparation and utilities

data.1()

Simulate Phase I Multivariate Normal Data

data.2()

Simulate Phase II Multivariate Normal Data

add.data()

Add a New Observation to a Phase II T² Chart

remove.data()

Remove an Observation from Phase I Data

stats()

Auxiliary Statistics for Hotelling T² Charts

table.const()

Table of Control Chart Constants d2, d3, and c4

table.qtukey()

Tukey Quantile Table for the Relative Range

Example datasets

binomdata

Binomial Process Data for p-Charts

moonroof

Moonroof Installation Defect Data

pistonrings

Piston Rings Diameter Data

softdrink

Soft Drink Bottling Volume Data