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: 0.5.1
Date: 2008-02-12
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' and Giorgio Spedicato Maintainer: 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)
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 0.6.0 Index]