Hi,
I am trying to use drc package to calculate IC50 value. The ED50 calculated in
some models (LL4 for example) as a response half-way between the upper and
lower limit, which is the definition of the relative IC50 value. Does that mean
the ED50 in drc package is IC50? How the ED function in drc package distinguish
to estimate ED or IC values?
Thanks a lot
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