@Reeza I guess I just am having trouble understanding how exactly to go from having the max of the concentration (Cmax), and max of time, to finding the time of the highest concentration (Tmax). We have 13 times, and 13 concentrations for 7 different subjects. and the highest time is 32 for all of the subjects, but the highest concentrations differ between each subject. For instance, subject 1 has the highest concentration of 4.7 at time 2. but then subject 2 has the highest concentration of 4.7 at time 3. So I'm very confused on how to make the Tmax = 2 for subject 1, but Tmax = 3 for subject 3 and so on. Someone mentioned WHICHN(), but we have never talked about this in our class, so I'm not even sure where to start on that.
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