To our knowledge there is no public fully nonparametric NPMR in R. HyperNiche offers this, smoothly integrated with overfitting controls, randomization tests, bootstrapping, and GIS support. Nor are we aware of any nonparametric regression in R that automatically builds leave-one-out crossvalidation into the model selection phase.
The user experience in HyperNiche differs radically from R. HyperNiche is a Windows software program that offers the convenience of a graphical user interface, the power and flexibility of interactive graphics, a built-in context-sensitive help system, and free dedicated technical support. HyperNiche enables you to quickly and confidently select, run, and interpret appropriate analyses and produce tailored, publication quality graphics without writing code.
HyperNiche Features not Found in R
* Integrated
Fast and easy analysis and graphing in a Windows program with a graphical user interface
* Supported
Technical support provided by Wild Blueberry Media