Beefy Boxes and Bandwidth Generously Provided by pair Networks
Don't ask to ask, just ask
 
PerlMonks  

(MeowChow) Re: How to control the loop

by MeowChow (Vicar)
on May 30, 2002 at 01:04 UTC ( #170270=note: print w/ replies, xml ) Need Help??


in reply to How to control the loop

I'm guessing you meant to do something like:
  
#!/usr/bin/perl -w use strict; open(FH, "table") or die "Can't open file to read!: $!\n"; for my $i (2..682) { while (<FH>) { chomp; my @matrix = split; my $seed = $matrix[$i]; if ($seed !~ /[ACGTN-]/) { print "P$i "; last; } } seek FH, 0, 0; } close FH;
This code assumes your file is too large to reasonably read into an array; if not, you should do so, instead of reading it over and over 682 times. Even if it is quite large, there are better ways to process it, if efficiency is of any concern.
   MeowChow                                   
               s aamecha.s a..a\u$&owag.print

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://170270]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others scrutinizing the Monastery: (4)
As of 2016-06-27 23:51 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    My preferred method of making French fries (chips) is in a ...











    Results (348 votes). Check out past polls.