def_fixed_gamma_lambda: def

In LuchTiarna/PsyFuns: Package for extrapolating psychometric information

Description

Default algorithm for fitting parameters of psychometric function. Only inner parameters are fitted, gamma and lambda are fixed and have to be specified.

Usage

def_fixed_gamma_lambda(data, sigmoid, core, gamma = 0.05,
  lambda = 0.05, par = NULL, fn = NULL, gr = NULL, ...,
  method = c("Nelder-Mead", "BFGS", "CG", "L-BFGS-B", "SANN", "Brent"),
  lower = -Inf, upper = Inf, control = list(), hessian = FALSE)

Arguments

data	Specifies the data set on which the function will be fitted. Data have to be formated in specified way - data.frame/tibble (yes, no, predictor columns).
sigmoid	determines the outer shape of the fuction
core	dermines scalling of predictor
gamma	sets the loves boundary of function
lambda	sets the highes boundary of function
...	specifies the parametres of optim function

Value

vector of return values

LuchTiarna/PsyFuns documentation built on July 8, 2019, 12:28 a.m.