fdqcd {qcr}

It creates a data object to be used in Functional Data Quality Control

Description

Create an object of class 'fdqcd' to perform statistical quality control. This object is used to plot Functional Data Control Charts.

Usage

fdqcd(x, data.name = NULL, ...)

Arguments

x

Matrix of set cases with dimension (n x m), where n is the number of curves and m are the points observed in each curve.

data.name

a string that specifies the title displayed on the plots. If not provided it is taken from the name of the object's data.

...

arguments passed to or from methods.

Examples

library(qcr)
m <- 30
tt<-seq(0,1,len=m)
mu<-30 * tt * (1 - tt)^(3/2)
n0 <- 100
set.seed(12345)
mdata<-matrix(NA,ncol=m,nrow=n0)
sigma <- exp(-3*as.matrix(dist(tt))/0.9)
for (i in 1:n0) mdata[i,]<- mu+0.5*mvrnorm(mu = mu,Sigma = sigma )
fdchart <- fdqcd(mdata)
plot(fdchart,type="l",col="gray")