SORTING MATRIX IN PERL

[truckcab]

Hi,
I have written some Perl scripts occasionally in order to facilitate my job as a CAE-engineer. Everytime I need to sort the results that I have stored in a matrix I have had to make the sorting myself i.e. using some subroutine. However, Id really, really would like to learn how to use the perl function sort. I have read about it at many places and also tried to get it working but I have never ever got it to work for me. Can anyone help me here?

Say that i have a matrix $matrix with $n rows and $m columns and that I want to sort the rows based on what is the number in the second column. How do I do this using teh Perl sort function?

I would be very grateful for any help here!

Best regards
Pierre



Live Long and Prosper !

 

[IRstuff]

You might be better off on this site's sister site:

http://www.tek-tips.com/threadminder.cfm?pid=219

which has a Perl forum

TTFN (ta ta for now)
I can do absolutely anything. I'm an expert!

https://www.youtube.com/watch?v=BKorP55Aqvg

faq731-376 forum1529

 

[MacGyverS2000]

And have a look at Python... might be a stronger scripting language for what you're doing.

Dan - Owner

http://www.Hi-TecDesigns.com

 

[xwb]

Just do an internet search for perl sort 2d array - lots of hits

If you are working in perl, make sure you comment the code - it is one of those syntax rich languages where simple statements can be written in lots of different ways - depends on what languages you have used as to how you write the code. Cobol programmers will write perl differently from C programmers.

Re: Live long and Prosper: you may have to use the spaceship operator <=>