Re: How to fill the contents of a 2D piddle?

[kevbot]

You can read delimited data directly into PDLs using the rcols function from the PDL::IO::Misc module. For example, if you have the following data in a file named table.csv

0.1,0.2,0.3,0.4,0.5
1,2,3,4,5
1.1,2.2,3.3,4.4,5.5
10,20,30,40,50
100,200,300,400,500

Then you can read it into a 2D PDL as follows:

#!/usr/bin/env perl

use strict;
use warnings;

use PDL;
use PDL::IO::Misc;

my $x = pdl( rcols 'table.csv', { COLSEP => ',' } );
print $x;

exit;

and the output will be:

[
 [0.1   1 1.1  10 100]
 [0.2   2 2.2  20 200]
 [0.3   3 3.3  30 300]
 [0.4   4 4.4  40 400]
 [0.5   5 5.5  50 500]
]