04-15-2010
Quote:
In vbscript i achieved in the following way
I don't know where you found this program but one of the many places this VB program is published is:
http://www.zipcodeworld.com/docs/distance.pdf
I don't know whether you are a programmer or shell scripter or what computer or software you have. To embark on writing this sort of program you would need to know what tools are available and know how to use them.
What might be trivial in a high-level language beomes a nightmare if you start in the wrong language (like trying to use ksh when you do not know the capabilities or syntax).
Of the tools supplied with most unixes "bs" might be more suitable than "bc".
Both "bs" and "bc" are hard to get right. However you are more likely to find examples in "awk", "C" or "perl" online.
This "awk" idea posted recently on unix.com might get you started (not checked, not tested).
https://www.unix.com/shell-programmin...e-azimuth.html
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LEARN ABOUT DEBIAN
text::levenshtein
Levenshtein(3pm) User Contributed Perl Documentation Levenshtein(3pm)
NAME
Text::Levenshtein - An implementation of the Levenshtein edit distance
SYNOPSIS
use Text::Levenshtein qw(distance);
print distance("foo","four");
# prints "2"
print fastdistance("foo","four");
# prints "2" faster
my @words=("four","foo","bar");
my @distances=distance("foo",@words);
print "@distances";
# prints "2 0 3"
DESCRIPTION
This module implements the Levenshtein edit distance. The Levenshtein edit distance is a measure of the degree of proximity between two
strings. This distance is the number of substitutions, deletions or insertions ("edits") needed to transform one string into the other one
(and vice versa). When two strings have distance 0, they are the same. A good point to start is: <http://www.merriampark.com/ld.htm>
"fastdistance" can be called with two scalars and is faster in most cases.
See also Text::LevenshteinXS on CPAN if you do not require a perl-only implementation. It is extremely faster in nearly all cases.
See also Text::WagnerFischer on CPAN for a configurable edit distance, i.e. for configurable costs (weights) for the edits.
AUTHOR
Copyright 2002 Dree Mistrut <dree@friul.it>
This package is free software and is provided "as is" without express or implied warranty. You can redistribute it and/or modify it under
the same terms as Perl itself.
perl v5.10.0 2009-01-19 Levenshtein(3pm)