Keywords - Function groups - @ A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Library: smoother
See also: uni tri trian epa qua gau cosi canker

Quantlet: canbw
Description: does the canonical bandwith transformation of a bandwith value of kernel K1 into an equivalent bandwidth for Kernel K2.

Reference(s):

Usage: {dK, cK, mK} = canbw(K)
Input:
K1 string, kernel function on [-1,1] or "gau".
Output:
dK canonical bandwidth for K.
cK squared L2 mnorm of K.
mK second moment of K.

Example:

library("smoother") 

{dK, cK, mK} = canbw("qua")

dK ~ 35^0.2    ; dK should be 35^0.2 

cK ~ 5/7       ; cK should be 5/7

mK ~ 1/7       ; mK should be 1/7

Result:

Contents of _tmp

[1,]   2.0362   2.0362 

Contents of _tmp

[1,]  0.71429  0.71429 

Contents of _tmp

[1,]  0.14286  0.14286 


Library: smoother
See also: uni tri trian epa qua gau cosi canker

Keywords - Function groups - @ A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Author: Marlene Mueller, 990209
(C) MD*TECH Method and Data Technologies, 21.9.2000