How to change a matrix into a PDL data structure?

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Perl

file

Hello,

I just learned how to use PDL. The problem is that my data (matrix) is in an external file.
How can i change change it into a PDL data structure?
I tried the code below but, the values in $s are still ones.

use PDL;
use PDL::Matrix;
use PDL::NiceSlice;
use PDL::AutoLoader;
use PDL::IO::Dumper;

my $s = ones(10,10); # There are 10 columns and 10 rows
my $k = 0;
while (my $line = <$fileHandler>)
{
        $s(0:9,0:$k) = $line;
        $k++;
}

Regards and thank you,

Herve