Rather than creating the matrix using PDL, I would like to know ways to use existing matrix in TAB delimited file in PDL.
I wish to perform math operations on that matrix.
I tried math operations on randomly created matrix in situ but I have no idea if it is possible to import matrix from text files.
use PDL;
$a = zeroes 5,5;
$b = xvals $a;
print $b;
Here , 5X5 matrix with zeros was created for trial. I would be interested in external matrix not this one.
Use PDL::IO::Misc::rcols
:
Input data:
1 2 3 4 5
6 7 8 9 10
code:
use PDL;
my $x = rcols( 'foo.dat', [] );
print $x;
Result:
% perl foo.pl
[
[ 1 6]
[ 2 7]
[ 3 8]
[ 4 9]
[ 5 10]
]