qAnalyst-package {qAnalyst}R Documentation

Package to create and analyze control charts and to perform capability analysis

Description

Creates xbar, s, r, i, mr, p, np, c, u chart. Perform capability analysis for both normal and non normal data.

Details

Package: qAnalyst
Type: Package
Version: 0.6.4
Date: 2011-01-14
License: GPL -2

Function spc and capability create objects of class spc and capability respectively.
Charts of type xbar, r, s, i, mr, p, np, c and may be handled by spc objects.
Generic methods plot, print and summary exist for spc and capability objects.

Author(s)

Andrea Spano'

Maintainer: Andrea Spano' andrea.spano@quantide.com

References

Montgomery, Statistical Quality Control

Examples

# A simple x bar chart
# Data: cranks

data(cranks)
x = cranks$crankshaft
sg = cranks$workingDay

go = spc(x = x, sg = sg, type = "xbar")
plot(go)
print(go)
summary(go)
rm(go)


# Capability example
# Data: cranks
data(cranks)
x = cranks$crankshaft
sg = cranks$workingDay

go = capabilityNormal(x = x, sg = sg, lsl = -10, usl = 10, target = 0)
plot(go)
print(go)
summary(go)
rm(go)

[Package qAnalyst version 0.6.4 Index]