Nonparametric smoothing methods for density and regression estimation involving circular data, including methods described in Oliveira et al. (2014) and proposals in Alonso-Pena et al. (2021).
Release 2.0.1 was released in Oct. 2014 as the working version to accompany 'Oliveira, M., Crujeiras, R.M. and Rodr�guez-Casal, A. (2014). 'NPCirc: An R Package for Nonparametric Circular Methods. Journal of Statistical Software, 61(9), 1-26., URL http://www.jstatsoft.org/v61/i09/.'