
KERNEL DENSITY POINTSName:
where K is the kernel function h is the smoothing parameter or window width. This command sets the number of points at which the kernel density estimate is computed. In particular, the horizontal points for the kernel density plot are computed at:
where
By default, the density curve is generated with 256 points. The underlying FFT computation expects this number to be a power of 2 (i.e., 2^{K}). Currently, Dataplot limits this value to 2^{K} where K is an integer between 5 (= 32 points) and 11 (2,048) points. Values below 32 are set to 32, values greater than 2,048 are set to 2,048 and values between 32 and 2,048 are rounded up to the next value of 2^{K} (i.e., 32, 64, 128, 256, 512, 1024, or 2048).
where <value> is a number or parameter that specifies the desired number of points.
KERNEL DENSITY POINTS 512 KERNEL DENSITY POINTS 2048
. MULTIPLOT 2 2 MULTIPLOT CORNER COORDINATES 2 2 MULTIPLOT SCALE FACTOR 2 . KERNEL DENSITY POINTS 64 X3LABEL DENSITY WITH 64 POINTS KERNEL DENSITY PLOT Y . KERNEL DENSITY POINTS 256 X3LABEL DENSITY WITH 256 POINTS KERNEL DENSITY PLOT Y . KERNEL DENSITY POINTS 512 X3LABEL DENSITY WITH 512 POINTS KERNEL DENSITY PLOT Y . KERNEL DENSITY POINTS 1024 X3LABEL DENSITY WITH 1,024 POINTS KERNEL DENSITY PLOT Y . END OF MULTIPLOT
 
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Date created: 8/14/2001 