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How to do Design of Experiments with Box-Behnken design with my required levels?

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Arul poomalai
Arul poomalai 18 May 2015
I need to do Design of Experiments with Box-Behnken design. when i enter "dBB = bbdesign(3)" it will generate a 18x3 matrix like shown in figure. Here -1 means lower point. 0 means middle level.1 means upper level. But how can i set level for my levels to my value. The levels also shown in the figure.
i need to get the matrix like 40, 30 , 0.5 figure shown not -1, 0, 1.

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Thomas Koelen
Thomas Koelen 18 May 2015
Thomas Koelen 님이 편집함. 18 May 2015
dBB=bbdesign(3);
dBB(dBB==-1)=40;
dBB(dBB==0)=30;
dBB(dBB==1)=0.5;
dBB
Here you go.
Dbb=
40.0000 40.0000 30.0000
40.0000 0.5000 30.0000
0.5000 40.0000 30.0000
0.5000 0.5000 30.0000
40.0000 30.0000 40.0000
40.0000 30.0000 0.5000
0.5000 30.0000 40.0000
0.5000 30.0000 0.5000
30.0000 40.0000 40.0000
30.0000 40.0000 0.5000
30.0000 0.5000 40.0000
30.0000 0.5000 0.5000
30.0000 30.0000 30.0000
30.0000 30.0000 30.0000
30.0000 30.0000 30.0000

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Arul poomalai
Arul poomalai 3 Jun 2015
Thanks a lot. But how can i get my design like this, figure attached.

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BISWAJYOTI PANI
BISWAJYOTI PANI 15 Oct 2017
Its unfortunate to see that till the date there are no sequential steps available to create Box-Behnken DOE with the required levels. No option to know the point type (factorial or center point), Standard order, block which is essential part execute to BB-Design in other statistical software (like design expert, Minitab). Any developer viewing this requested to post the link or add the steps.

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