Hello Fellow JMPers'
I am trying to find the optimum manufacturing parameters using the RSM approach. My design has 5 responses and 5 factors ( 4 continuous and 1 categorical). I tried using the DOE- Classical- Response Surface Design; but when I get to inputting the factors, it seems the factors can only be continuous? I was using the CCD design. I am not sure how I can navigate this. When I go ahead with putting my categorical factor as a continuous factor then I get some meaningless variations in the design table since this category is supposed to have just two levels.
What I have tried to do now is creating a Custom Design and choosing the RSM under Model (and I get the message that the categorical factor cannot appear in the polynomial model terms), and I go on to select minimum number of runs, and in this case 22 (with 2 center points), or should I select the default number of runs which is 26?
My issue is I am not sure if this is the correct approach? and if it is how do I evaluate the accuracy of the design? I also read somewhere here in the forum that one cannot use CCD when the design is a custom design? So I am not sure how I can then use the RSM. My goal is to optimise my process.
There was a similar question some time ago but its not clear what the user ended up doing hence my question here. Also I cant seem to find the post anymore.
Thank you i advance for your contributions.
