I know how to randomize an array 31461. I know how to splice elements among arrays.

What I don't know is how to combine the two, such that I shuffle items in array A among all possible other arrays. e.g. I randomly assign where items in array A go (from A into A, B, C ... N), while maintaining the size of A, B, C, ... N.

Here is how I have been thinking about it thus far: 

use strict;
use warnings;

my @array_a = (10, 22, 34, 21, 20, 12, 32, 31, 91, 20);
my @array_b = (10, 22, 34, 21, 20, 12, 32, 31, 91, 20, 11, 32, 44, 51,
+ 10, 22, 82, 71, 61, 54);
my @array_c = (14, 25, 64, 71, 80);

my @new_a = ();
my @new_b = ();
my @new_c = ();

my @sizes = (10, 20, 5); #sizes of array obtained elsewhere
my @where_to = ('a', 'b', 'c');


foreach my $move_to (@where_to) {

    my $size = shift @sizes;

    my @moving = ();
    
    for (1 .. $size) {
    
        my $index = int rand @where_to;
        my $element = $where_to[$index];
        
        push @moving, $element;
        
    }

    print "@moving\n";

    foreach my $moving (@moving) {

    # my $moved = shift @array_$move_to; #I am not sure how to do this

    # push @new_$moving, $moved; #Again now sure how to do this

#But even lacking the correct bit of code here, you can see,
#    where I am going with this. 


    }
}

[download]
The problem with this is that it moves to many or not enough items into A B and C. So, is there a way to keep the sizes of the arrays same, but shuffle the items as I have tried to do above?

Thanks for any help the esteemed monks can give,
-Bio.

---- Even a blind squirrel finds a nut sometimes.

In reply to Randomize elements among several arrays, while maintaining original array sizes. by BioNrd

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