search for: logaritham

...       0.0001 2                   0.0029  3                   0.0083 .............................. ..............................   etc and to this data I am fitting Y = a * exp(b*X)   My quereis are (1) is there any R function which will find out the estimated values of a and b instead of taking logaritham and converting both sides into linear equation and solve for a and b;   (2) How do I find out out Statistically that this is the best fit? e.g. had it been linear regression, the R^2 gives me some idea about the fitted linear line. In otehr words, is there any way of comparing the observed values o...