A Flexible Modelling Environment for Inverse Modelling, Sensitivity, Identifiability and Monte Carlo Analysis R package FME version 1.3.6.4 CRAN Task View: Bayesian (https://CRAN.R-project.org/view=Bayesian) CRAN Task View: DifferentialEquations (https://CRAN.R-project.org/view=DifferentialEquations) Provides functions to help in fitting models to data, to perform Monte Carlo, sensitivity and identifiability analysis. It is intended to work with models be written as a set of differential equations that are solved either by an integration routine from package 'deSolve', or a steady-state solver from package 'rootSolve'. However, the methods can also be used with other types of functions. Software Depends: R (>= 2.6), deSolve, rootSolve, coda Imports: minpack.lm, MASS, graphics, grDevices, stats, utils, minqa Suggests: diagram Karline Soetaert <karline.soetaert@nioz.nl> Comprehensive R Archive Network (CRAN) Karline Soetaert [aut, cre] (ORCID: <https://orcid.org/0000-0003-4603-7100>), Thomas Petzoldt [aut] (ORCID: <https://orcid.org/0000-0002-4951-6468>) GPL (>= 2) 2025-07-25 application/tgz https://CRAN.R-project.org/package=FME doi:10.32614/CRAN.package.FME