I have gazed longingly at PDL for some time but am not sure my basic Perl knowledge is up to it (this is probably an excuse ... I can be good at excuses). The real restrictions are

• time (to learn and implement it)
• PDL may not be available to me in the environment this tool will run in

I will have to check on the second item. I know others here use PDL, but the module situation here is complex.

Thanks!