stats (version 3.4.1)

formula.nls: Extract Model Formula from nls Object

Description

Returns the model used to fit object.

Usage

# S3 method for nls
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

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