OSOA_LiuLiut

Strong Orthogonal Arrays of Strength t using the method of Liu and Liu

internal

Creates stratum orthogonal arrays (also known as strong orthogonal arrays). These are arrays with more levels per column than the typical orthogonal array, and whose low order projections behave like orthogonal arrays, when collapsing levels to coarser strata. Details are described in Groemping (2022) "A unifying implementation of stratum (aka strong) orthogonal arrays" <http://www1.bht-berlin.de/FB_II/reports/Report-2022-002.pdf>.

Ulrike Groemping

SOAs

Creation of Stratum Orthogonal Arrays

Rob Carnell

OSOA_LiuLiut function

<dl><dt>oa</dt>
<dd>matrix or data.frame that contains an ingoing symmetric OA. Levels must be denoted as 0 to s-1 or as 1 to s.</dd>
<dt>t</dt>
<dd>strength of <code>oa</code>. If <code>NULL</code> (default), <code>t</code> will be
determined. <code>t</code> can be chosen smaller than the input strength if
additional columns are desired.</dd>
<dt>m</dt>
<dd>desired number of columns. Defaults to the maximum possible.</dd>
<dt>permlist</dt>
<dd>a list of length m of lists of length 1 of permutations of the levels</dd>
<dt>random</dt>
<dd>a logical (a random draw of permutations is used if <code>permlist</code> is <code>NULL</code>)</dd></dl>

Arguments

Strong Orthogonal Arrays of Strength t using the method of Liu and Liu — OSOA_LiuLiut

<dl>

<dt>oa</dt>
<dd>matrix or data.frame that contains an ingoing symmetric OA. Levels must be denoted as 0 to s-1 or as 1 to s.</dd>


<dt>t</dt>
<dd>strength of <code>oa</code>. If <code>NULL</code> (default), <code>t</code> will be
determined. <code>t</code> can be chosen smaller than the input strength if
additional columns are desired.</dd>


<dt>m</dt>
<dd>desired number of columns. Defaults to the maximum possible.</dd>


<dt>permlist</dt>
<dd>a list of length m of lists of length 1 of permutations of the levels</dd>


<dt>random</dt>
<dd>a logical (a random draw of permutations is used if <code>permlist</code> is <code>NULL</code>)</dd>

</dl>

OSOA_LiuLiut: Strong Orthogonal Arrays of Strength t using the method of Liu and Liu

Description

Usage

Value

Arguments

Details

References