Constrained Single Index Model Estimation R package simest version 0.4-1-1 Estimation of function and index vector in single index model ('sim') with (and w/o) shape constraints including different smoothness conditions. See, e.g., Kuchibhotla and Patra (2020) <doi:10.3150/19-BEJ1183>. Software Imports: nnls, cobs, stats, graphics Martin Maechler <maechler@stat.math.ethz.ch> Comprehensive R Archive Network (CRAN) Arun Kumar Kuchibhotla [aut] (ORCID: <https://orcid.org/0000-0003-4459-5352>), Rohit Kumar Patra [aut], Martin Maechler [ctb, cre] (fix *.Rd, etc to get back on CRAN, ORCID: <https://orcid.org/0000-0002-8685-9910>) GPL-2 2025-12-03 application/tgz https://CRAN.R-project.org/package=simest doi:10.32614/CRAN.package.simest