search for: weights2

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2002 Dec 18
1
Kernel smoothing.
I wish to produce a weighted (Gaussian?) kernel density estimate, in 2 dimensions, where the weights are permitted to be ***negative***. (I can ASSURE you that there are perfectly legitimate reasons why I want to do this. :-)) Clearly it is not really a density that I am trying to estimate. I had a go at using sm.density() from the sm package, but this requires that the weights be positive. Is