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It creates a data object to be used in Multivariante Quality Control

Source: R/mqcd.R
mqcd.Rd

Create an object of class 'mqcd' to perform statistical quality control. This object is used to plot Multivariate Control Charts.

Usage

mqcd(x, data.name = NULL)

Arguments

x

A matrix, a data-frame or an array where it should contain data.

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.

Examples

library(qcr)
data(dowel1)
str(dowel1)
#> 'data.frame':	40 obs. of  2 variables:
#>  $ diameter: num  0.492 0.501 0.491 0.492 0.505 0.5 0.497 0.509 0.49 0.499 ...
#>  $ length  : num  0.988 1.011 1.008 0.97 1.003 ...
data.mqcd <- mqcd(dowel1)
str(data.mqcd)
#>  'mqcd' num [1:40, 1:2, 1] 0.492 0.501 0.491 0.492 0.505 0.5 0.497 0.509 0.49 0.499 ...
#>  - attr(*, "dimnames")=List of 3
#>   ..$ : NULL
#>   ..$ : chr [1:2] "diameter" "length"
#>   ..$ : NULL
#>  - attr(*, "data.name")= chr " DATA"
#>  - attr(*, "type.data")= chr "Multivariate"