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linfnorm
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)
REQUIRED ARGUMENTS
- u
- first vector of numbers
- v
- second vector of numbers
OPTIONAL ARGUMENTS
None.
VALUE
A real number which is the L infinity distance between two vectors.
SIDE EFFECTS
None.
DETAILS
Function simply computes the L infinity distance between two vectors and is
implemented as
max(abs(u-v))
RELEASE
Version 3.6 Copyright Guy Nason 1995
SEE ALSO
l2norm,
wstCV,
wstCVl.
BUGS
This function would probably be more accurate if it used the
Splus function vecnorm.
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