linfnorm {wavethresh} | R Documentation |
Compute L infinity distance between two vectors of numbers.
Description
Compute L infinity distance between two vectors of numbers (maximum absolute difference between two vectors).
Usage
linfnorm(u,v)
Arguments
u |
first vector of numbers |
v |
second vector of numbers |
Details
Function simply computes the L infinity distance between two vectors and is implemented as
max(abs(u-v))
Value
A real number which is the L infinity distance between two vectors.
RELEASE
Version 3.6 Copyright Guy Nason 1995
Note
This function would probably be more accurate if it used the Splus function vecnorm
.
Author(s)
G P Nason
See Also
Examples
#
# What is the L infinity norm between the following sets of vectors
#
p <- c(1,2,3,4,5)
q <- c(1,2,3,4,5)
r <- c(2,3,4,5,6)
linfnorm(p,q)
# [1] 0
linfnorm(q,r)
# [1] 1
linfnorm(r,p)
# [1] 1
[Package wavethresh version 4.7.2 Index]