Validation Tools for Artificial Neural Networks R package validann version 1.3 Methods and tools for analysing and validating the outputs and modelled functions of artificial neural networks (ANNs) in terms of predictive, replicative and structural validity. Also provides a method for fitting feed-forward ANNs with a single hidden layer. Software Depends: R (>= 3.1.0) Imports: moments Suggests: nnet, knitr, rmarkdown Patrice Kiener <rpackages@inmodelia.com> Comprehensive R Archive Network (CRAN) Greer B. Humphrey [aut], Patrice Kiener [cre] (ORCID: <https://orcid.org/0000-0002-0505-9920>) GPL (>= 2) 2026-08-19 application/tgz https://CRAN.R-project.org/package=validann doi:10.32614/CRAN.package.validann