Hey! Since you told me you got to calculate it, can I ask you something? I've found a NLIN code, probably I'll be able to reproduce it in SAS. But there some parameters to put on the code where I'm stuck. We use DOSE DURATION X AUEC, right? In the formula we have to type the inicial values, right? How do I find them? What about the slope, how to obtain this data? that is the code: proc nlin data = dr;
parms top = 68.875 bottom = 20.575 EC50 = 1 hill = 1;
model response = top + (bottom - top) /
(1 + (concentration / EC50)**hill);
run;
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