note
etj
PDL (saying this as a not-very-surprising fan) is best employed on rectangular data. I don't think tree structures are a very natural fit, although <a href="https://metacpan.org/dist/PDL/view/Basic/Pod/MATLAB.pod#COMPARISON:-FLOYD-WARSHALL-ALGORITHM">there are exceptions</a> for some graph-theory problems!
11138654
11138671