It creates a data object to be used in Functional Data Quality Control — fdqcd • qcr

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 x.
...: 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")