R: Extract Model Formula from nls Object

formula.nls {stats}

R Documentation

Extract Model Formula from nls Object

Returns the model used to fit object.

## S3 method for class 'nls':
formula(x, ...)

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

a formula representing the model used to obtain object.

Jose Pinheiro and Douglas Bates

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