stats (version 3.1.1)

formula.nls: Extract Model Formula from nls Object

Description

Returns the model used to fit object.

Usage

"formula"(x, ...)

Arguments

x
an object inheriting from class "nls", representing a nonlinear least squares fit.
...
further arguments passed to or from other methods.

Value

a formula representing the model used to obtain object.

See Also

nls, formula

Examples

Run this code
fm1 <- nls(circumference ~ A/(1+exp((B-age)/C)), Orange,
           start = list(A = 160, B = 700, C = 350))
formula(fm1)

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