Can I change a Random Block to a Blocking Factor post DOE execution

Question

Hello everyone, I hope you are well! I have run into a problem of my own devising. While designing an RSM DOE, instead of adding a Blocking Factor of Day of Run, I designed a DOE with Random Blocks. This caused me to fall into the rabbit hole of REML. Now that the experiment is complete, with data ready to fit...is there a way to change the Random Block to a Blocking Factor? Or do I need to proceed into the world of REML? I have no experience in scripting, so I would prefer an interactive explanation.

Regards,

Jason

Blocking Mix-up DOE.jmp

jwilliams · Accepted Answer

Hello Mark,

Thanks for your prompt reply! Exactly what I needed to know. The DOEs we have executed previously for this client use blocking as a fixed effect, and the client will ask us why this one was fit using REML. Trepidation accompanies the pursuit of anything new, but I will overcome and pursue both strategies so I can compare.

Stay well,

Jason