Dear Simbiology community,
I got confused about summing up two species concentration in simbiology.
In my dataset, I have a column named "ACRG", which represents experimental values of a biomarker. However, in my model, I have defined two species (ACRG1 and ACRG2) relevant to this biomarker. From the algebraic view, "ACRG"=Concentration of ACRG1+concentration of ACRG2.
When I do the model fitting and would like to get the model parameter estimation, how could I let the software know it should estimate the sum of those two species concentration value as the "ACRG" in my dataset?
Many thanks if someone could provide the answer in detail.
YZ
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