expansive.replace: Expansive replacement for two orthogonal arrays
Description
Expansive replacement for two orthogonal arrays
Usage
expansive.replace(array1, array2, fac1)
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
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.
Details
This function mainly is meant for combining two orthogonal arrays
via what Kuhfeld (2009) calls expansive replacement.
References
Kuhfeld, W. (2009). Orthogonal arrays. Website courtesy of SAS Institute http://support.sas.com/techsup/technote/ts723.html.