[R] exponential day

[Francis Boateng]

Hi,
Please, how can I determine parameters from exponential equation
Example one:  y = a*exp(-b*x);  how do I determine �a� and �b�, as well as R-square from data sets. And also fitting y = a*exp(-b*x) into the data sets
Assuming data sets
A = (0,2,4,6,8,10)
B = (1,0.8,0.6,0.4,0.2,0.1)

Thanks
Francis


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