Am 10/03/2011 04:47 PM, schrieb artur bala: well this doesn't look backward to me !? apart from that, loop for (i=$nobs;i>0;i--) or something like that (check the manual, I'm not using that syntax too often) if you know the region, just search in that region loop i=lowerbound..$nobs if you don't exactly know where that region starts, you have to search everywhere it seems -sven