comment on

Just looking briefly at it, the following comes to mind. I'm going to make a bit of an assumption in that you just want to keep a copy of the lines, for processing later.

# $filename is already defined
my (@keptrecords);
open(INFILE, $filename) 
  or die("Can't open $filename for input: $!\n");
while (my $line = <INFILE>) {
    my $tokeep = 0;
    my $checkexclusion = 0;
    my @parts = split(/,/, $line);
    foreach (@parts) {
        $checkexclusion++ if ($_ eq '305.1');
        $tokeep++ if (( 296.1 <= $_ ) and ( $_ <= 314.0 ));
    }
    next if (( $checkexclusion ) and ($tokeep <= 1));
    push(@keptrecords, $line);
}
[download]

Just a thought, based on the idea you presented. Hope that helps....

In reply to Re: Seeking Algorithm by atcroft
in thread Seeking Algorithm by WhiteBird

Are you posting in the right place? Check out Where do I post X? to know for sure.
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>
Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
Want more info? How to link or How to display code and escape characters are good places to start.


Welcome to the Monastery
	PerlMonks