exp_fit: Exponential fit with nls
Description
This function performs an exponential fit using non-linear least squares (nls).
Usage
exp_fit(value, delay, initial_guess, max_iter = 1e+05, scale_offset = 0)
Value
An object of class nls
containing the fitted model.
Arguments
- value
A numeric vector of the subjective values (indifference points).
- delay
A numeric vector of the delays used in the experiment.
- initial_guess
A numeric value providing an initial estimate for the parameter k
.
- max_iter
An integer specifying the maximum number of iterations for the nls fitting algorithm.
Default is 1e5.
- scale_offset
A numeric value for the scaling offset used in nls fitting control. Default is 0.