I've visited this a few times now.  Here's where I'm stumped -- I'm not clear on the construction of the formula... perhaps it's too many nested layers.  Whatever the case, I'm running into errors when I try to change the time horizon of the calculation.  What I'd like to be able to do is create ulcer indexes for various time periods -- like a 5-bar, 21-bar, 40-bar, etc...  then plot them against each other (which should be a pretty simple overlay in TC2000.  Any help with the construction here would be great.  Somehow I've lost track of the parenthesis each time I try to alter the original formula.

Okay, so showing how much of a noob I am here...  can you point me to some resources to get a better handle on how to code this thing?  I'm completely unfamiliar with the language and the various products offered through Worden.  I'd like to be able to create a few different UI time periods -- like 5, 10, 17, 21, 40, 100, etc...  I just need a little more of a nudge in the right direction.  I 'conceptually' understand the other thread, but I don't know how to translate of actually get the code started.

Thanks for the response Tom!

Would like to be able to calculate the Ulcer Index of various time frames in TC2000.  Any help creating these formulas would be greatly appreciated.  Thanks!