dexisensitivity: An R package to perform sensitivity analyses of DEXi models

DEXi is a software for developing qualitative hierarchical models. Widely used in the French agriculture sector to analyze the sustainability of farming systems, the sensitivity analyses of the models are still missing. The dexisensitivity R package performs such sensitivity analyses. Written using R S4 Object programming, it performs basic functions (reads DEXi models, describes and draws the models, generates and simulates scenarios) and other functions to perform different types of sensitivity analyses: analysis of variance, One-At-A-Time, sensitivity indexes using the Shapiro-Shapley approach… The dexisensitivity R package is distributed under the GPL license and is accessible from CRAN and GitHub. • DEXi-models allow for complex decision models to be addressed. • We developed a R library to test the sensitivity of such models. • We also developed a simple graphical interface to represent these models.