[R] help needed in least square curve fit equation

[Wu Gong]

As I understand, it is an optimization problem. 

LeastSquare=sum[y-f(x)]^2

Minimize least square by solving equations about a, b, and c. An iterative
method could be developed to get the result or some R functions might be
found useful. Please refer
http://r.789695.n4.nabble.com/Is-there-any-Gauss-newton-library-function-in-R-td897353.html

Hope it helps.



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