expansive.replace: Expansive replacement for two orthogonal arrays

Description Usage Arguments Details Value Note Author(s) References See Also Examples

View source: R/expansive.replace.R

Description

Expansive replacement for two orthogonal arrays

Usage

1
   expansive.replace(array1, array2, fac1 = NULL)

Arguments

array1

an orthogonal array, must be a matrix;
the levels of column fac1 of this array are replaced by the corresponding runs of array2; they must be numbered with integers starting with 1

array2

an orthogonal array, must be a matrix
this array is replaced for a column in array1

fac1

if NULL, the first suitable column of array1 is replaced with array2;
alternatively, a suitable column number for array1 can be specified

Details

This function mainly is meant for combining two orthogonal arrays via what Kuhfeld (2009) calls expansive replacement.

Value

The function returns an object of classes oa and matrix, which can be used in function oa.design. Whether or not the object is an orthogonal array depends on the choice of suitable input arrays by the user. The properties of the resulting array can e.g. be inspected with functions GWLP or GRind.

Note

This package is currently under intensive development. Substantial changes are to be expected in the near future.

Author(s)

Ulrike Groemping

References

Kuhfeld, W. (2009). Orthogonal arrays. Website courtesy of SAS Institute http://support.sas.com/techsup/technote/ts723.html.

See Also

See Also oacat

Examples

1

DoE.base documentation built on June 10, 2018, 5:05 p.m.