R help - Jun 2009 - KernSmooth pckg - dpik function gives numeric(0) for kernel="epanech"

Dear colleagues,
    I have encountered following problem in R 2.9.0 and KernSmooth pckg
v. 22.23-1. If I tried to choose to estimate bandwith for kernel density
estimate
with Epanechnikov filtr, I got result numeric(0). I used both scalest
options with
the same results
However for the remaing kernels I got some results. Let me mention that I
tried all geyser and faithful dataframe variables.
The code is enclosed

library(MASS)
library(KernSmooth)
x<-geyser$duration
dpik(x,scalest="stdev",kernel="epanech")
 dpik(x,scalest="iqr",kernel="epanech")



Thank you very much for advise what to do correctly.
Ondrej Vozar

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