In Response To 'Re: Fitting Complicated functions'
I've been getting the same errors as well. The data is quantum dot lifetimes and the equation is derived from physical parameters from exciton lifetimes in quantum dots so the equation can't be changed.
I ended up adding constraints to my parameters to try to avoid this infinity problem but I still get an error who's meaning I don't really understand. I don't really know the range for R but m should be between .4 and 1.
I also though that the times on the x axis were pretty small so I changed the units to nanoseconds rather than seconds but that had no real effect.
I edited the data a bit so that the data before the first peak is removed.
Attachment: trial.nb, URL: ,