A Suite of R Functions Implementing Spline Smoothing Techniques R package assist version 3.1.9 Fit various smoothing spline models. Includes an ssr() function for smoothing spline regression, an nnr() function for nonparametric nonlinear regression, an snr() function for semiparametric nonlinear regression, an slm() function for semiparametric linear mixed-effects models, and an snm() function for semiparametric nonlinear mixed-effects models. See Wang (2011) <doi:10.1201/b10954> for an overview. Software Depends: R (>= 3.0.2), nlme, lattice Yuedong Wang <yuedong@ucsb.edu> Comprehensive R Archive Network (CRAN) Yuedong Wang [aut, cre], Chunlei Ke [aut], Cleve Moler [cph] GPL-2 2023-08-22 application/tgz https://CRAN.R-project.org/package=assist doi:10.32614/CRAN.package.assist