topic Optimize desirability with fixed factors in SAS Programming https://communities.sas.com/t5/SAS-Programming/Optimize-desirability-with-fixed-factors/m-p/111691#M259028 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><P>I am buiding a DoE model using 6 responses and 1 continuous and 5 categorical factors.</P><P></P><P>One of the factors is a tablet, I have 6 different.</P><P></P><P>The other factors are methods, each applicable to a tablet.</P><P></P><P>I need to find the optimum value of the factors for all tablets, as well as for each of the tablets.</P><P></P><P>How do I optimise desirability, for each of the tablets? In the prediction profiler it seems I can't fix a factor. The optimal setting can very well be different for each tablet.</P></BODY></HTML> Sun, 13 Oct 2013 18:21:44 GMT Peder 2013-10-13T18:21:44Z Optimize desirability with fixed factors https://communities.sas.com/t5/SAS-Programming/Optimize-desirability-with-fixed-factors/m-p/111691#M259028 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><P>I am buiding a DoE model using 6 responses and 1 continuous and 5 categorical factors.</P><P></P><P>One of the factors is a tablet, I have 6 different.</P><P></P><P>The other factors are methods, each applicable to a tablet.</P><P></P><P>I need to find the optimum value of the factors for all tablets, as well as for each of the tablets.</P><P></P><P>How do I optimise desirability, for each of the tablets? In the prediction profiler it seems I can't fix a factor. The optimal setting can very well be different for each tablet.</P></BODY></HTML> Sun, 13 Oct 2013 18:21:44 GMT https://communities.sas.com/t5/SAS-Programming/Optimize-desirability-with-fixed-factors/m-p/111691#M259028 Peder 2013-10-13T18:21:44Z Re: Optimize desirability with fixed factors https://communities.sas.com/t5/SAS-Programming/Optimize-desirability-with-fixed-factors/m-p/111692#M259029 <HTML><HEAD></HEAD><BODY><P>It is actually very easy: In the prediction profile grid you Alt-click on the factor. A little window appears, where it is possible to select "Lock Factor Setting".</P><P></P><P>Then the factor is fixed, and the dashed red line becomes solid. When "Maximise desirability" is then chosen from the red triangle menu this factor is not varied.</P><P></P><P>More than one factor can be locked.</P><P><IMG alt="3.png" class="jive-image-thumbnail jive-image" src="https://communities.sas.com/legacyfs/online/4373_3.png" width="450" /></P><P>An alternative solution is to select "Maximise for each grid point" in the red-triangle menu. Then all combinations of desirability is shown. You can then sort after the "desirability" column, to see which setting is best.</P></BODY></HTML> Tue, 15 Oct 2013 15:03:42 GMT https://communities.sas.com/t5/SAS-Programming/Optimize-desirability-with-fixed-factors/m-p/111692#M259029 Peder 2013-10-15T15:03:42Z