Because the instrument you put the indicator on need Volume.
You can try this version instead, which prevent the indicator to calculate if it has still not bar enough loaded:
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stvwmaperiods = 10
ltvwmaperiods = 50
stsmaperiods = 5
svpciperiods = 10
price = customclose
if barindex > ltvwmaperiods then
// Calculate Short Term & Long Term Volume Weighted Moving Averages
ShortTermVWMA= Summation [ stvwmaperiods] (Volume * price )/ Summation [ stvwmaperiods] (Volume )
LongTermVWMA= Summation [ ltvwmaperiods] (Volume * price )/ Summation [ ltvwmaperiods] (Volume )
// Calculate Short Term Simple Moving Average
ShortTermSMA= average [ stsmaperiods] (price )
// Calculate the VPCI Components
VPC= ShortTermVWMA - ShortTermSMA
VPR= ShortTermVWMA / ShortTermSMA
VM= ShortTermVWMA / LongTermVWMA
// Calculate Volume Price Confirmation Indicator
// Normalize VPCI values & Calculate Volume-Weighted MA of VPCI
VPCI= VPC * VPR * VM//) * 10000 / C
SmoothedVPCI= Summation [ svpciperiods] (Volume * VPCI)/ Summation [ svpciperiods] (Volume )
endif
return VPCI,smoothedVPCI
It’s working for me, but as I said, I’m not sure how it should look, because I saw many other different versions of this indicator over the internet.
