I was trying to fit some data to this equation I know all the parameters except for k which varies. This equation works fine with my sigmoidal curve that looks like the one below But I have a set of data that also looks like an "S" shaped curved except it's the opposite way (i.e. the top of the curve is at the lower x values). What changes can I do to still be able to get k for this type of curve? or do I need to try an find another entire equation for this?
I think you might try adding a parameter and modifying your fitting function to: since your data is symmetric with the regular sigmoidal curve about x=x0 which is parallel to y-axis. I am not sure whether this is the right function that you want to fit. Hope this will be helpful.
Dissociation Constant
Posted - 07/31/2012 : 8:31:09 PM
