Re: Transpose a file

If I understand you are interested in something like Rotating an array

update maybe you'll find this useful

use strict;
use warnings;

my @aoa;
my $row=0;
while (<DATA>){
     chomp;
     push @{$aoa[$row]}, split /\s+/;
     $row++;

}
foreach my $ar (@aoa){
 for my $index (0..$#aoa){
    print +(shift @{$aoa[$index]} || '--')," " ;

 }

}continue{print "\n"}

__DATA__
A1 A2 A3
B1 B2 B3
C1 C2 C3
d1 d2 d3 d4



#OUTPUT

A1 B1 C1 d1 
A2 B2 C2 d2 
A3 B3 C3 d3 
-- -- -- d4
[download]

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Comment on Re: Transpose a file Download Code

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Re^2: Transpose a file by Lotus1 (Vicar) on May 09, 2016 at 14:21 UTC
Hello Discipulus I found your method of creating the array of arrays `push @{$aoa[$row]}, split /\s+/` harder to follow than what the OP has. I tried them side by side and got the same results with both. `use strict; use warnings; use Data::Dumper; my @aoa1; my @aoa2; my $row=0; while (<DATA>){ chomp; push @{$aoa1[$row]}, split /\s+/; $row++; push @aoa2, [ split /\s+/ ]; } print Dumper \@aoa1; print Dumper \@aoa2; __DATA__ A1 A2 A3 B1 B2 B3 C1 C2 C3` [download]	[reply] [d/l] [select]

Replies are listed 'Best First'.

Re^2: Transpose a file
by Lotus1 (Vicar) on May 09, 2016 at 14:21 UTC

Hello Discipulus

I found your method of creating the array of arrays

push @{$aoa[$row]}, split /\s+/

harder to follow than what the OP has. I tried them side by side and got the same results with both.

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

my @aoa1;
my @aoa2;

my $row=0;
while (<DATA>){
    chomp;
    push @{$aoa1[$row]}, split /\s+/;
    $row++;
    push @aoa2,        [ split /\s+/ ];
}

print Dumper \@aoa1;
print Dumper \@aoa2;

__DATA__
A1 A2 A3
B1 B2 B3
C1 C2 C3
[download]

[reply]
[d/l]
[select]