adding values to the last 10 bars

[adTS]

Hi,
Need help coding the following scenario:

input length = 10;
I want to calculate Exp(-(Power(-i, 2) / 128)) for the last X bars
I would like to see in my last 10 bars the following values:

mydef = 8.173035134
mydef[1] = 8.634157081
mydef[2] = 8.996859656
mydef[3] = 9.247021397
mydef[4] = 9.374678698
mydef[5] = 9.374678698
mydef[6] = 9.247021397
mydef[7] = 8.996859656
mydef[8] = 8.634157081
mydef[9] = 8.173035134


I am trying to do a loop to get the first value of 8.173035134

counter result
0 1
-1 0.992217938
-2 0.969233234
-3 0.932102492
-4 0.882496903
-5 0.822577562
-6 0.754839602
-7 0.681940751
-8 0.60653066
-9 0.531095991

and so for

Can you tell me what I am doing wrong?

This is my code:

declare lower;

input length = 10;
def lastBar = HighestAll(if !IsNaN(close) then BarNumber() else 0);

plot mydef = if lastBar - length < BarNumber() then
fold i = 0 to length - 1 do
(
(fold j = 0 to length with s = 0 do
s + Exp(-(Power(i - j, 2) / 128)))
)
else 0;

AddLabel(yes, "mydef: " +mydef, Color.CYAN);
AddLabel(yes, "mydef[1]: " + mydef[1], Color.CYAN);
AddLabel(yes, "mydef[2]: " + mydef[2], Color.CYAN);
AddLabel(yes, "mydef[3]: " + mydef[3], Color.CYAN);
AddLabel(yes, "mydef[4]: " + mydef[4], Color.CYAN);
AddLabel(yes, "mydef[5]: " + mydef[5], Color.CYAN);
AddLabel(yes, "mydef[6]: " + mydef[6], Color.CYAN);
AddLabel(yes, "mydef[7]: " + mydef[7], Color.CYAN);
AddLabel(yes, "mydef[8]: " + mydef[8], Color.CYAN);
AddLabel(yes, "mydef[9]: " + mydef[9], Color.CYAN);

All my values for mydef are 8.634157081

All loop values:

loop 1	loop 2	result		Total
0​	0​	1​
	-1​	0.992218​
	-2​	0.969233​
	-3​	0.932102​
	-4​	0.882497​
	-5​	0.822578​
	-6​	0.75484​
	-7​	0.681941​
	-8​	0.606531​
	-9​	0.531096​		8.173035​
1​	1​	0.992218​
	0​	1​
	-1​	0.992218​
	-2​	0.969233​
	-3​	0.932102​
	-4​	0.882497​
	-5​	0.822578​
	-6​	0.75484​
	-7​	0.681941​
	-8​	0.606531​		8.634157​
2​	2​	0.969233​
	1​	0.992218​
	0​	1​
	-1​	0.992218​
	-2​	0.969233​
	-3​	0.932102​
	-4​	0.882497​
	-5​	0.822578​
	-6​	0.75484​
	-7​	0.681941​		8.99686​
3​	3​	0.932102​
	2​	0.969233​
	1​	0.992218​
	0​	1​
	-1​	0.992218​
	-2​	0.969233​
	-3​	0.932102​
	-4​	0.882497​
	-5​	0.822578​
	-6​	0.75484​		9.247021​
4​	4​	0.882497​
	3​	0.932102​
	2​	0.969233​
	1​	0.992218​
	0​	1​
	-1​	0.992218​
	-2​	0.969233​
	-3​	0.932102​
	-4​	0.882497​
	-5​	0.822578​		9.374679​
5​	5​	0.822578​
	4​	0.882497​
	3​	0.932102​
	2​	0.969233​
	1​	0.992218​
	0​	1​
	-1​	0.992218​
	-2​	0.969233​
	-3​	0.932102​
	-4​	0.882497​		9.374679​
6​	6​	0.75484​
	5​	0.822578​
	4​	0.882497​
	3​	0.932102​
	2​	0.969233​
	1​	0.992218​
	0​	1​
	-1​	0.992218​
	-2​	0.969233​
	-3​	0.932102​		9.247021​
6​	7​	0.681941​
	6​	0.75484​
	5​	0.822578​
	4​	0.882497​
	3​	0.932102​
	2​	0.969233​
	1​	0.992218​
	0​	1​
	-1​	0.992218​
	-2​	0.969233​		8.99686​
8​	8​	0.606531​
	7​	0.681941​
	6​	0.75484​
	5​	0.822578​
	4​	0.882497​
	3​	0.932102​
	2​	0.969233​
	1​	0.992218​
	0​	1​
	-1​	0.992218​		8.634157​
9​	9​	0.531096​
	8​	0.606531​
	7​	0.681941​
	6​	0.75484​
	5​	0.822578​
	4​	0.882497​
	3​	0.932102​
	2​	0.969233​
	1​	0.992218​
	0​	1​		8.173035​

 

[adTS]

def sumAbs = if lastxbars then sumAbs[1]+absvalue(close - y2)
else 0;

 

[adTS]

sumAbs is not calculated correctly
the formula starts with last bar + previous value
calculates the value backward

trying to find a solution

 

[adTS]

tried to use one

def sumAbs2;
if lastxbars then {
sumAbs2 = (fold k = start to start +1
with p3
do p3 + if k == 1 then 0 else absvalue(GetValue(close,k)-GetValue(y2,k)));
} else {
sumAbs2 = 0;
}

did not work

 

[adTS]

I think I got it, testing

 

[halcyonguy]

sumAbs is not calculated correctly
the formula starts with last bar + previous value
calculates the value backward

trying to find a solution

change offset k
to
start - k

 

[william_north]

I think I got it, testing

Hi @adTS, can you please share the fixed code as I'm working on similar script with nested loop and found this.
Please let me know if I can be of any help.