formula.nls {stats} | R Documentation |
Returns the model used to fit object
.
## S3 method for class 'nls'
formula(x, ...)
x |
an object inheriting from class |
... |
further arguments passed to or from other methods. |
a formula representing the model used to obtain object
.
JosÃ© Pinheiro and Douglas Bates
fm1 <- nls(circumference ~ A/(1+exp((B-age)/C)), Orange,
start = list(A = 160, B = 700, C = 350))
formula(fm1)