On Thu, 1 Jul 2010, yinung at Gmail wrote:
 I run the Wilcoxon Signed-Rank Test with x and y in the attached gdt
 file but the gretl crashed (under windows XP).
 I am not sure If the problem is resulted from the data in y? 
Thanks for the report. The problem was nothing to do with your
data; it was a typo in the source. This is now fixed in CVS and
the snapshots for Windows and Mac.
Allin Cottrell