The problem with your code is that $i are indexes into @arr, but you use it to delete rows from @arr1.

That works for the first row to be deleted, but afterwards the indexes differ. Inserting $i--; directly after the call to splice might fix it (haven't tried it though).

Update: this script seems to work: 

use strict;
use warnings;

my @arr=(['a','b','c','d'],['e','f','g'],['h','i','j'],['e','f','g'],[
+'h','i','j'],['e','f','g'],['h','i','j'],['a','b','c','d'],['a','b','
+c','d']);
my @copy = @arr;

my $i=-1;

for(@arr){
    $i++;
    if(@$_[0] =~ /e/){
        splice(@copy,$i,1);
        $i--;
    }
}
print join (' ', @$_), "\n" for @copy;

[download]

You could also try a non-destructive approach: 

my @arr1 = grep { @$_ !~ /e/ } @arr;

[download]

That is, construct a new array which only those rows you actually want.

Perl 6 - second systems done right

In reply to Re: Remove "Row" from multidimensional array by moritz
in thread Remove "Row" from multidimensional array by relientmark

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