Fast Implementation of the Diffusion Decision Model

Provides the probability density function (PDF) of the diffusion decision model (DDM; e.g., Ratcliff & McKoon, 2008, ) with across-trial variability in the drift rate. Because the PDF of the DDM contains an infinite sum, it needs to be approximated. 'fddm' implements all published approximations (Navarro & Fuss, 2009, ; Gondan, Blurton, & Kesselmeier, 2014, ) plus new approximations. All approximations are implemented purely in 'C++' providing faster speed than existing packages.


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install.packages("fddm")

0.1-1 by Henrik Singmann, a month ago


Browse source code at https://github.com/cran/fddm


Authors: Kendal B. Foster [aut] , Henrik Singmann [ctb, cre]


Documentation:   PDF Manual  


GPL (>= 2) license


Imports Rcpp

Suggests rtdists, RWiener, ggplot2, reshape2, testthat, knitr, rmarkdown, microbenchmark, ggnewscale

Linking to Rcpp

System requirements: C++11


See at CRAN