Angers, Jean-Francois; MacGibbon, Brenda - In: Statistics & Probability Letters 83 (2013) 4, pp. 969-978
Wavelets have been successfully used for nonparametric function estimation, but for density and hazard functions, estimators must be nonnegative. In this paper, we develop a quasi-continuous nonnegative “wavelet” basis from Daubechies wavelets with good approximation properties. Using this...