i'm trying to get this to work. it can either plot as an indicator or i can rank  any ideas where my error is  tks in advance   marty

input price = close; 
input length = 76; 
input RiskFreeReturn = 4; 
 
def ROC = if price[length] != 0 then (price / price[length] - 1) * 100 
else 0; 
 
def Ri = 100*(price - Highest(price,length))/Highest(price,length); 
 
def UlcerX = sqrt(average( (Ri*Ri), length)); 
 
# plot RiskFree = RiskFreeReturn; 
 
plot UPI = round((ROC - RiskFreeReturn)/sqrt(average( (Ri*Ri), length)),1); 

At least with a length of 76, the resulting Indicator Formula is too long and slow to be practical or post in the forums.

Bruce, I asked tech support and they said i should ask a trainer

Yes, this is the correct place to ask the question. I created the formula and tested it. The resulting formula is too long and slow to be practical or post in the forums when the length is set to 76. That means I cannot help you create the formula unless we use a shorter period.

Bruce, I mis understood your answer.  I can do a smaller period.  The 76 is where I want the ranking to start.   I can use 50 or any time frame. If 50 doesn't work. Try 40

thanks again. Marty

If I'm understanding your description correctly (which is not guaranteed), then you could use the following formula for a length of 50 and a RiskFreeReturn of 4:

(100 * (C / C50 - 1.04) / (((C / MAXH50 - 1) ^ 2 + (C1 / MAXH50.1 - 1) ^ 2 + (C2 / MAXH50.2 - 1) ^ 2 + (C3 / MAXH50.3 - 1) ^ 2 + (C4 / MAXH50.4 - 1) ^ 2 + (C5 / MAXH50.5 - 1) ^ 2 + (C6 / MAXH50.6 - 1) ^ 2 + (C7 / MAXH50.7 - 1) ^ 2 + (C8 / MAXH50.8 - 1) ^ 2 + (C9 / MAXH50.9 - 1) ^ 2 + (C10 / MAXH50.10 - 1) ^ 2 + (C11 / MAXH50.11 - 1) ^ 2 + (C12 / MAXH50.12 - 1) ^ 2 + (C13 / MAXH50.13 - 1) ^ 2 + (C14 / MAXH50.14 - 1) ^ 2 + (C15 / MAXH50.15 - 1) ^ 2 + (C16 / MAXH50.16 - 1) ^ 2 + (C17 / MAXH50.17 - 1) ^ 2 + (C18 / MAXH50.18 - 1) ^ 2 + (C19 / MAXH50.19 - 1) ^ 2 + (C20 / MAXH50.20 - 1) ^ 2 + (C21 / MAXH50.21 - 1) ^ 2 + (C22 / MAXH50.22 - 1) ^ 2 + (C23 / MAXH50.23 - 1) ^ 2 + (C24 / MAXH50.24 - 1) ^ 2 + (C25 / MAXH50.25 - 1) ^ 2 + (C26 / MAXH50.26 - 1) ^ 2 + (C27 / MAXH50.27 - 1) ^ 2 + (C28 / MAXH50.28 - 1) ^ 2 + (C29 / MAXH50.29 - 1) ^ 2 + (C30 / MAXH50.30 - 1) ^ 2 + (C31 / MAXH50.31 - 1) ^ 2 + (C32 / MAXH50.32 - 1) ^ 2 + (C33 / MAXH50.33 - 1) ^ 2 + (C34 / MAXH50.34 - 1) ^ 2 + (C35 / MAXH50.35 - 1) ^ 2 + (C36 / MAXH50.36 - 1) ^ 2 + (C37 / MAXH50.37 - 1) ^ 2 + (C38 / MAXH50.38 - 1) ^ 2 + (C39 / MAXH50.39 - 1) ^ 2 + (C40 / MAXH50.40 - 1) ^ 2 + (C41 / MAXH50.41 - 1) ^ 2 + (C42 / MAXH50.42 - 1) ^ 2 + (C43 / MAXH50.43 - 1) ^ 2 + (C44 / MAXH50.44 - 1) ^ 2 + (C45 / MAXH50.45 - 1) ^ 2 + (C46 / MAXH50.46 - 1) ^ 2 + (C47 / MAXH50.47 - 1) ^ 2 + (C48 / MAXH50.48 - 1) ^ 2 + (C49 / MAXH50.49 - 1) ^ 2) ^ .5)) \ 1

And the following formula for a length of 40 and a RiskFreeReturn of 4:

(100 * (C / C40 - 1.04) / (((C / MAXH40 - 1) ^ 2 + (C1 / MAXH40.1 - 1) ^ 2 + (C2 / MAXH40.2 - 1) ^ 2 + (C3 / MAXH40.3 - 1) ^ 2 + (C4 / MAXH40.4 - 1) ^ 2 + (C5 / MAXH40.5 - 1) ^ 2 + (C6 / MAXH40.6 - 1) ^ 2 + (C7 / MAXH40.7 - 1) ^ 2 + (C8 / MAXH40.8 - 1) ^ 2 + (C9 / MAXH40.9 - 1) ^ 2 + (C10 / MAXH40.10 - 1) ^ 2 + (C11 / MAXH40.11 - 1) ^ 2 + (C12 / MAXH40.12 - 1) ^ 2 + (C13 / MAXH40.13 - 1) ^ 2 + (C14 / MAXH40.14 - 1) ^ 2 + (C15 / MAXH40.15 - 1) ^ 2 + (C16 / MAXH40.16 - 1) ^ 2 + (C17 / MAXH40.17 - 1) ^ 2 + (C18 / MAXH40.18 - 1) ^ 2 + (C19 / MAXH40.19 - 1) ^ 2 + (C20 / MAXH40.20 - 1) ^ 2 + (C21 / MAXH40.21 - 1) ^ 2 + (C22 / MAXH40.22 - 1) ^ 2 + (C23 / MAXH40.23 - 1) ^ 2 + (C24 / MAXH40.24 - 1) ^ 2 + (C25 / MAXH40.25 - 1) ^ 2 + (C26 / MAXH40.26 - 1) ^ 2 + (C27 / MAXH40.27 - 1) ^ 2 + (C28 / MAXH40.28 - 1) ^ 2 + (C29 / MAXH40.29 - 1) ^ 2 + (C30 / MAXH40.30 - 1) ^ 2 + (C31 / MAXH40.31 - 1) ^ 2 + (C32 / MAXH40.32 - 1) ^ 2 + (C33 / MAXH40.33 - 1) ^ 2 + (C34 / MAXH40.34 - 1) ^ 2 + (C35 / MAXH40.35 - 1) ^ 2 + (C36 / MAXH40.36 - 1) ^ 2 + (C37 / MAXH40.37 - 1) ^ 2 + (C38 / MAXH40.38 - 1) ^ 2 + (C39 / MAXH40.39 - 1) ^ 2) ^ .5)) \ 1