Is that really all there is to the error message, or did you leave out some of the stuff between quotes, for brevity? (What the quoted part says is that the arg had an ASCII "0" character, followed by an ASCII period character, followed by something else, and maybe it's the "something else" (where you have "...") that is making it hard to see the data as numeric.)

Chromatic is right -- seeing at least line 1 of "profile" will be helpful -- and if there's something other than those three periods in the error report that you posted, that would help as well.

FWIW, I made up a file with the numbers 1 .. 10 (and 1.0 .. 10.0, with both unix and dos line terminations, and ran it through just like you did, and had no problem -- it always printed quite nicely. So maybe your data is different somehow.

(And thanks for getting me acquainted with PDL -- looks totally awesome, and I'm gonna love it!)