Re^2: accessing array items

thanks for the reply Moritz.
I tried splitting, but it runs all items on column 1 into $items_in_line[0], all items in column 2 into $items_in_line[1] etc. My problem is that I can't seem to get into, and be able to reference, individual items within, say, $items_in_line[0].
Any further thoughts?
Thanks v much again.
Tedffo

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Re^3: accessing array items by moritz (Cardinal) on Jul 29, 2008 at 10:50 UTC
Here is a working example that demonstrates a bit more: `use strict; use warnings; use Data::Dumper; my @matrix; while (<DATA>){ chomp; my @row = split; print "second item in row: $row[1]\n"; push @matrix, \@row; } print "And this is how the matrix look like:\n"; print Dumper \@matrix; print "Iterating over the matrix, getting the first column:\n"; for my $row (@matrix){ print $row->[0], "\n"; } __DATA__ -2.65 -2.0865e-006 2.0831e-006 -2.6 -2.0532e-006 2.0569e-006 -2.55 -2.0215e-006 2.0262e-006` [download] If that doesn't help you, please show us the code you're using, and what you want it to print out. See also perlreftut, perldata, perldsc.	[reply] [d/l]

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Re^3: accessing array items
by moritz (Cardinal) on Jul 29, 2008 at 10:50 UTC

use strict;
use warnings;
use Data::Dumper;


my @matrix;
while (<DATA>){
    chomp;
    my @row = split;
    print "second item in row: $row[1]\n";
    push @matrix, \@row;
}

print "And this is how the matrix look like:\n";
print Dumper \@matrix;

print "Iterating over the matrix, getting the first column:\n";
for my $row (@matrix){
    print $row->[0], "\n";

}

__DATA__
-2.65 -2.0865e-006 2.0831e-006
-2.6 -2.0532e-006 2.0569e-006
-2.55 -2.0215e-006 2.0262e-006
[download]

If that doesn't help you, please show us the code you're using, and what you want it to print out.