Book Chapter

Sums of smooth exponentials

Camarda, C. G., Eilers, P. H. C., Gampe, J.

In: Bowman, A. (Ed.): Proceedings of the 25th International Workshop on Statistical Modelling, Glasgow 5 - 9 July, 2010, 113-118 (2010)
Glasgow, UK: University of Glasgow, Department of Statistics.


Standard smoothing procedures are challenged if the smoothness of the curve to be fitted varies strongly over the domain. A model is presented that conceptualizes the structure of such data as a sum of smooth components, which are modelled on the log scale and are then additively combined. The resulting estimation algorithm leads to a penalized composite link model. The approach is illustrated by three data examples.