Stixbox Function
Last update : 21/4/2006

plotdens - Draw a nonparametric density estimate

Calling Sequence

plotdens(X)
plotdens(X,h,P,K)

Parameters

Description

Draw a nonparametric density estimate. A density estimate is plotted using a kernel density estimate. A longer form plotdens(X,h,P,K) may be used where

h: is the kernel bandwidth,
P: is 1 if the density is known to be 0 for negative X,
K: is

1: Gaussian (the default)

2: Epanechnikov

3: Biweight

4: Triangular

Below the density estimate a jittered plot of the observations is shown.

See Also

histo,