Is it possible to create new variables when logistic 4P fitting?
Hello. I have a question about the how to create more variables when fitting 4PL curve.For example, we normally test 10 serially diluted concentration points and each point has triplicate results for reference and test product.Then, we do equivalence test using nonlinear fitting with sigmoid curves-logistic curves-logistic 4p with log transformed concentration data.And we can see the chart that ha...