I have written a CV.pm(perl5/5.30.0/lib/site_perl/5.30.0/x86_64-linux/PDL/CV.pm) as below: 

package PDL::CV;
use strict;
our @EXPORT=qw(rp);

sub rp {
    my ( $self, $input ) = @_;
    $self .= $input->reshape($self->dims);
    return $self;
}

sub new
{
    my $class = shift;
    my $self = {
        _input => shift,
    };
    bless $self, $class;
    return $self;
}
1;

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Then I wrote a test.pl as below: 
use v5.10;
use PDL;
use PDL::NiceSlice;
use PDL::CV;

$d = sequence(4,5);
$t = pdl sequence(100,5,5);
$d(0,1:4)->rp($t(0,0,1:4));

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When I ran this scripts, I get this message: Can't locate object method "rp" via package "PDL" at test_pdl6.pl line 28. If I do not want using $d(0,1:4)->PDL::CV::rp($t(0,0,1:4)); just using $d(0,1:4)->rp($t(0,0,1:4)); How should I do?

In reply to how to export a method by toothedsword

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