Phase {DiGGer} | R Documentation |
Create a Phase
object component of a DiGGer search.
Phase(rowsInSwapBlock = 1, columnsInSwapBlock = 1, rowsInCorrelationBlock = 1, columnsInCorrelationBlock = 1, aType = "A++", targetAValue = 0, maxInterchanges = 1e+05, searchIntensity = 100, numberOfObjectives = 1, objectives = list(Objective()))
rowsInSwapBlock |
Number of rows in the Swap Block template. |
columnsInSwapBlock |
Number of columns in the Swap Block template. |
rowsInCorrelationBlock |
Number of rows in the blocks of correlated error. |
columnsInCorrelationBlock |
Number of columns in the blocks of correlated error. |
aType |
The A-measure code, "A++", "Agg", "A22", "A11", "A1+", "Aa2" or "Aaa". |
targetAValue |
A-measure stopping rule for this |
maxInterchanges |
Maximum number of treatment interchanges
stopping rule for this |
searchIntensity |
Percentage of interchanges to be considered for non-improving treatment interchange. |
numberOfObjectives |
Number of objectives in this search
|
objectives |
List of DiGGer |
A DiGGer search Phase
is the framework for a call to the DiGGer
search program. The Phase
object is a component of a
DiGGer
object. When the DiGGer
search is run each
Phase
optimises the current design subject to the A-measure
aType
measured on the Objective
s specified. A DiGGer
search may have more than one Phase
. After a search
Phase
the optimised design is carried forward to the next
Phase
of the search.
In this way a DiGGer search involves progressive refinement of a design.
Swap block dimensions should be adjusted at the start of each search
Phase
so that objectives already optimised are not
compromised. This will mean that swap blocks should not be bigger
than the smallest block in a completed search Phase
.
The blocks of correlated error defined by
rowsInCorrelationBlock
and columnsInCorrelationBlock
must tile evenly over the design dimensions.
.nrbs |
Number of rows in the Swap Block template. |
.ncbs |
Number of columns in the Swap Block template. |
.nrbv |
Number of rows in the blocks of correlated error. |
.ncbv |
Number of columns in the blocks of correlated error. |
.atype |
A-measure code. |
.targa |
Target A-measure. |
.maxint |
Maximum interchanges to test. |
.srchint |
Search intensity. |
.nobj |
Number of objectives. |
.objve |
List of DiGGer |
Neil Coombes