Using nonlinear regression

Attached is a copy of my code, the data and the plots obtained by varying 
terms manually, I was told that nonlinear regression in R could find the 
values for me, but I am unable to figure how exactly I could implement this.  
Any help would be very greatly appreciated as I am completely stuck on this 
problem.

It might be good to have an example of your problem.

On Aug 4, 2005, at 5:57 AM, Mark Miller wrote:

Hi, I have been trying to figure out how to use the nonlinear
regression to
fit the cumulative lognormal distribution to a number of data
points I have
but I am a new R user and I cant quite decipher the notes on nonlinear
regression.  Any help in this regard will be greatly appreciated,
my email
address is mmiller at nassp.uct.ac.za

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