Data missing or script is wrong?

makc52

New member
Trying to PLOT RSI of VIX and NDX on the SPX chart, using the Charts time aggregate.

Code:
declare lower;

input security_num1 = "VIX";
input security_num2 = "NDX";

def vix = close(security_num1);
def src = close(security_num2);

input rsiLength = 14;

plot vixRSI = reference RSI("price" = vix, "length" = rsiLength);
plot nqRSI = reference RSI("price" = src, "length" = rsiLength);

Plotting the above seems to be cut off between 6:15 and 7:35. Any idea what is missing, is it data issue? Thank you!

kEnWcfF.png
 
Solution
that's the thing, it's regular hours and it's for VIX and NDX so has to be something else

The use of a recursive (using prior value) helps when data is missing.

Code:
declare lower;

input security_num1 = "VIX";
input security_num2 = "NDX";

def vix = if isnan(close(security_num1)) then vix[1] else close(security_num1);
def src = if isnan(close(security_num2)) then src[1] else close(security_num2);
input rsiLength = 14;

plot vixRSI = reference RSI("price" = vix, "length" = rsiLength);
plot nqRSI = reference RSI("price" = src, "length" = rsiLength);
Screenshot 2023-05-26 101742.png
Its most likely because one or more of the symbols does not print during the same extended hours periods as the others. Should be fine if you use regular market hours.
 

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Its most likely because one or more of the symbols does not print during the same extended hours periods as the others. Should be fine if you use regular market hours.
that's the thing, it's regular hours and it's for VIX and NDX so has to be something else
 
Last edited:
that's the thing, it's regular hours and it's for VIX and NDX so has to be something else

The use of a recursive (using prior value) helps when data is missing.

Code:
declare lower;

input security_num1 = "VIX";
input security_num2 = "NDX";

def vix = if isnan(close(security_num1)) then vix[1] else close(security_num1);
def src = if isnan(close(security_num2)) then src[1] else close(security_num2);
input rsiLength = 14;

plot vixRSI = reference RSI("price" = vix, "length" = rsiLength);
plot nqRSI = reference RSI("price" = src, "length" = rsiLength);
Screenshot 2023-05-26 101742.png
 
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