Why? And how to solve it? The code and result are following,
> data=rnorm(50)
>
> kde=density(data,n=20,from=-1,to=10)
>
> kde$x;kde$y
[1] -1.0000000 -0.4210526 0.1578947 0.7368421 1.3157895 1.8947368
[7] 2.4736842 3.0526316 3.6315789 4.2105263 4.7894737 5.3684211
[13] 5.9473684 6.5263158 7.1052632 7.6842105 8.2631579 8.8421053
[19] 9.4210526 10.0000000
[1] 2.422392e-01 3.877025e-01 4.746580e-01 2.757747e-01 1.787630e-01
[6] 1.102396e-01 2.331694e-02 3.294412e-04 2.260746e-07 6.996146e-12
[11] -1.179461e-18 -1.226790e-17 8.892545e-18 1.144173e-17 -1.881253e-17
[16] -2.782621e-17 -5.314722e-18 -1.691545e-17 -1.986261e-17 -2.498227e-17
Best,
Junjie Li
Tsinghua Univercity
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