AlgDesign - $D $A $Ge $Dea

Hi,

I am wondering how I should interpreate the output of optFederov() in AlgDesign.

Specially I want to know what is $D, $A, $Ge and $Dea, which one I can use as an efficiency to say how good the optimal design is.

I only know when a orthogonal design comes, $D = 1.

I red the pdf document ? ?-- ? vignette("AlgDesign")

[Just type: vignette("AlgDesign") in R, you will get this pdf document]

On page 20 section 4.2.1.3, it says: the D and G efficiencies of the following ... are 98% and 89%.

I tried the code as shown on page 20 a few times and output showed different designs but the figure of $D, $A, $Ge and $Dea are similar. I don't see $D is close to 0.98, but $Ge is 0.89. One of the output as below:

dat = gen.factorial(3, 3, center = T, varNames = c("A", "B", "C"))
desC = optFederov(~quad(A,B,C), dat, nT = 14, evaluateI = T, nR = 100)
desC

$D
[1] 0.4630447

$A
[1] 3.22

$I
[1] 9.945833

$Ge
[1] 0.893

$Dea
[1] 0.887

$design
? ?A ?B ?C
1 ?-1 -1 -1
3 ? 1 -1 -1
5 ? 0 ?0 -1
7 ?-1 ?1 -1
9 ? 1 ?1 -1
11 ?0 -1 ?0
13 -1 ?0 ?0
15 ?1 ?0 ?0
17 ?0 ?1 ?0
19 -1 -1 ?1
21 ?1 -1 ?1
23 ?0 ?0 ?1
25 -1 ?1 ?1
27 ?1 ?1 ?1

$rows
?[1] ?1 ?3 ?5 ?7 ?9 11 13 15 17 19 21 23 25 27

Thanks very much!
J

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