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Repeated Measurments from Reactors

I run a factorial experiment in reactors with e.g. pH and Temp as factors. Additionally, I want to take time as a factor, because I typically sample over time and I'd like to use this information too in my evaluation in jmp. To me, this appears not to be not fully randomized but rather a repeated measurement kind of design. As far as I have seen, repeated measurements are typically done with individuals, but they are not defined by different factor settings.

How is such a design correctly modelled in jmp?

Re: Repeated Measurments from Reactors

It sounds like to me that each row or treatment combination is an individual run and within that run you are measuring your response over time therefore I would treat each measurement at a given time as a response or Y and analyze the design in that manner.

Re: Repeated Measurments from Reactors

Thanks Lou V,
I usually do that, but I think I lose some information and, in addition, depending on the number of samples I draw, I have quite a few responses, which makes it difficult to judge on the best settings.

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