How to operator join two matrix in raku-lang？

Question

Is there have something like R-lang columnbind or rowbind in raku. R-lang cbind

e.g.

my @matrix = ^100 .rotor(10);
my @cbind = cbind( @matrix [*;1..2].rotor(2) , @matrix [*;3..4].rotor(2) )
my @rbind = rbind ( @matrix [1..2;*].rotor(10) , @matrix [3..4;*].rotor(10) ）

Answer 1

rbind is straightforward:

my @one = <a b c d>.rotor(2);
my @two = <e f g h>.rotor(2);
say @one.append: @two;

Update: edited thanks to comment.

If order does not matter so much, you can just use ∪ and it will turn into a set.

cbind is a bit trickier, but doable:

say (@one Z @two).map( { @_.map: |* } )

Z is the zip operator, which will interleave the elements of the first and the second list. But then well have too many nested lists, so we need to flatten the inner list here: { @_.map: |* }. That will output

((a b e f) (c d g h))