Z-Score for NDX (NASDAQ-100)

Mike

Member
Can anyone help me to modify the Z-Score indicator (see below) such that it will plot the Z-Score for the following ((AAPL+MSFT+AMZN+GOOG+FB+TSLA)/6) in a subgraph below a chart of the NASDAQ 100 Index (NDX). I’ve made numerous attempts but have been unsuccessful. Thanks!

Code:
#Computes and plots the Zscore

#Provided courtesy of ThetaTrend.com

#Feel free to share the indicator, but please provide a link back to ThetaTrend.com

declare lower;
input price = close;
input length = 20;
input ZavgLength = 20;

#Initialize values

def oneSD = stdev(price,length);
def avgClose = simpleMovingAvg(price,length);
def ofoneSD = oneSD*price[1];
def Zscorevalue = ((price-avgClose)/oneSD);
def avgZv = average(Zscorevalue,20);

#Compute and plot Z-Score

plot Zscore = ((price-avgClose)/oneSD);
Zscore.setPaintingStrategy(paintingStrategy.HISTOGRAM);
Zscore.setLineWeight(2);
Zscore.assignValueColor(if Zscore > 0 then color.dark_green else color.dark_green);
plot avgZscore = average(Zscorevalue,ZavgLength);
avgZscore.setPaintingStrategy(paintingStrategy.LINE);

#This is an optional plot that will display the momentum of the Z-Score average

#plot momZAvg = (avgZv-avgZv[5]);

#Plot zero line and extreme bands

plot zero = 0;
plot one = 1;
plot negone = -1;
plot two = 2;
plot negtwo = -2;
zero.setDefaultColor(color.black);
 
try replacing
input price = close
with this

Python:
#input price = close;

# ((AAPL+MSFT+AMZN+GOOG+FB+TSLA)/6)
def sym1 = close("AAPL");
def sym2 = close("MSFT");
def sym3 = close("AMZN");
def sym4 = close("GOOG");
def sym5 = close("FB");
def sym6 = close("TSLA");
def price = ((sym1 + sym2 + sym3 + sym4 + sym5 + sym6) / 6);
 
try replacing
input price = close
with this

Python:
#input price = close;

# ((AAPL+MSFT+AMZN+GOOG+FB+TSLA)/6)
def sym1 = close("AAPL");
def sym2 = close("MSFT");
def sym3 = close("AMZN");
def sym4 = close("GOOG");
def sym5 = close("FB");
def sym6 = close("TSLA");
def price = ((sym1 + sym2 + sym3 + sym4 + sym5 + sym6) / 6);
Thank you very much halcyonguy!
 

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