This is the result of some tinkering around at one time when investigating yet another density estimation idea. I found it useful to use normal mixtures as examples, including the Marron-Wand densities. Martin Mächler, ETH Zurich, Switzerland March 1997, June 2002 --------- o The Marron-Wand densities are not regular data sets, e.g., they can't be used without the normix package. ==> hence in ./R/ and not ./data/ o bug in qnorMix() --- the interval for uniroot is sometimes too small --> tests/ex.R -- fixed fo 1.0-6 HOWEVER: improve qnorMix() for long input vectors: - sort(p) - compute qnormMix( range(p) ) = qnorMix( p[c(1, n)] ) use splinefun() in between as good starting values for uniroot()!