RT Book,_Section T1 A review on nonparametric circular regression A1 Alonso Pena, María A1 Crujeiras Casais, Rosa María K1 Nonparametric regression K1 Circular data K1 Flexible regression K1 Directional data AB Nonparametric regression models, involving circular variables (as responses and/or covariates) are revised in this chapter, focusing on a kernel approach. For linear response and circular covariate, both suitably adapted local polynomial and local likelihood models are introduced. The local polynomial approach is also presented for circular response regression. The use of these estimators for testing different hypotheses is also revised and their applicability is illustrated with a real data example. Finally, we provide some resources for the computation of the different tools. PB Springer SN 978-981-96-2003-6 YR 2025 FD 2025-05-06 LK https://hdl.handle.net/10347/43425 UL https://hdl.handle.net/10347/43425 LA eng NO Alonso-Pena, M., Crujeiras, R.M. (2025). A Review on Nonparametric Circular Regression. In: Kumar, S., Arnold, B.C., Shimizu, K., Laha, A.K. (eds) Directional and Multivariate Statistics. Springer, Singapore. DS Minerva RD 23 abr 2026