Simultaneous fit of seven concentration-response curves with the Hill equation, using CVFIT. Results of Black & Shankley for the inhibition of gastric secretion evoked by 5-methyl-furmethide by six different atropine concentrations. The dashed lines show fits that are constrained to have the same maximum, but the Hill slope (n_{H}) is estimated separately for each. The solid curves show fits that are also constrained to have the same Hill slope (i.e. to be parallel on the log scale).
Download a pdf file that describes a case study of methods of fitting the Schild equation (methods that CVFIT can do).
Technical notes about using CVFIT for such fitting can be downloaded here
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