Connecting Tech Pros Worldwide Forums | Help | Site Map
bytes > topic > perl > answers

How to make matrix?

Newbie
  
Join Date: Jan 2007
Posts: 1
#1: Jan 31 '07
I’ve been given a file
1 2 15
1 3 16
2 3 20
and so on…First two values of the input file represents graph nodes and the third one is distance between them. I know the number of nodes(in previous example number of nodes is 4, counting starts from 0)
I need perl code that makes a matrix that looks like this:
0 0 0 0
0 0 15 16
0 15 0 20
0 16 20 0
Thanks in advance!!!!!

miller's Avatar
Moderator
  
Join Date: Oct 2006
Location: San Francisco, CA
Posts: 830
#2: Jan 31 '07

re: How to make matrix?

Read the tutorial on complex data structures. There's a section specifically on "Arrays of Arrays"

http://perldoc.perl.org/perldsc.html...-of-arrays-AoA
KevinADC's Avatar
Expert
  
Join Date: Jan 2007
Location: Southern California USA
Posts: 4,091
#3: Jan 31 '07

re: How to make matrix?

Check your PM's Miller.
Reply

« previous question | next question »

Similar Perl bytes

/bytes/development

/bytes/it

Forums
Visit our community forums for general discussions and latest on Bytes

Our staff and community areas have moved to bytes.com/forums/

/bytes/about

We are a network of experts and professionals in IT and software development that help one another with answers to tough questions and share insights. Get the best answers to your questions from over 226,471 network members.

dev questions:
algorithms | asp | asp.net | c/c++ | coldfusion | c# | flash | html/css | java | javascript |
mobile dev | .net | perl | php | python | ruby | software dev | vb.net | visual basic | xml
it questions:
access | apache | careers | db2 | iis | macosx | mysql | networking | oracle | postgresql | sql server | unix | windows

About Bytes | Copyright 1995-2009 BYTES. All rights Reserved