Design Matrix (For Design of Experiments)

Everything related to the development of modules in jamovi

by credmontgo » Tue Oct 12, 2021 1:41 pm

Has anyone looked at creating a Module for creating a design matrix?

I currently teach a Ontario, Canada College Statistics course for Chemical Engineers on Design of Experiments using Minitab. The students start the course at about two-sample t tests, and work up to fractional factorial and surface response designs. In theory a Design Matrix is a simple thing to create, but having the software create one and handle some of the analysis means the students can focus on understanding, and less on equations and data entry. I could also give out pre-created files to the students, but I feel I would be teaching them to follow directions, no solve problems.

It's also entirely possible there are different/better names for all of these, and I'm not already seeing them built in.

Here is a demo of how Minitab handles these functions
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by jonathon » Tue Oct 12, 2021 10:35 pm


is the "randomizer" module from the jamovi library relevant here? not sure.

otherwise if you've got some R skills, it should be pretty straight forward to whip up a module to do this:

kind regards

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by credmontgo » Mon Oct 18, 2021 1:34 pm

Yes relevant, but only for setup. The module needs to also dump output back to the data windows (or maybe easily copyable from the output back to the data). Some modelling and factorial type options would be nice too.
Yes, my fallback will be to invest in some module coding skills, but I wanted to check if there's already something out there (or a better way to teach the material) before investing the time.
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by RHainez » Wed Oct 20, 2021 1:59 pm


An experimental design module would be an excellent addition to jamovi. If someone has already done that, I'd be interested in testing it. Please, let me know.

Have a nice day.
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