exporting data from [jconsole][j installation zip].
rlo =. 4 : 'a; (,.b); +/@:*: (b =. ? 0 $~ # y)+ y - (a =. ? 0 $~ #@> y;x) +/ . * x'
iter =. 3 : 'y; 1 2 3 rlo 5 7 8 9'
data =: iter"0 i.50
outstr =: ": data
require 'files'
outstr fwrite 'out.txt'
(": $ outstr) fappend 'out.txt'