This is not strange at all. A density need not have the same units
as probability, and usually doesn't. There is a section detailing this
point in the manual.
Here's one demonstration. If x is uniform on [0, 1] its density
is constant at 1 and necessarily integrates to 1. Then 0.5x will be
uniform on [0,0.5] and its density is necessarily constant at 2.
Otherwise the density would not in turn integrate to 1.
Nick
n.j.cox
Yue Li
I met a strange problem when using kdensity and hope someone could help
me.
When i use kdensity to draw density graph of my data, the scale of the
probablity excees one. Is this the problem of the command or anything?
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