tos-iv-precentile

gistfile1.txt

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# sdi_ivp: Display Implied Volatility Percentile as a label
#hint: Displays the Implied Volatility Percentile as a chart label. sdi_ivp rev: 1.2 http://www.smallDogInvestor.com 
# author: allen everhart
# date: 19jul2013
# revision 1.2 9/18/2013
#    enhancement to permit user to select label color
# revision 1.1 9/13/2013 
#    previously sdi_ivp printed N/A if there were gaps in the imp_volatility data. now gaps are ignored.
# copylefts reserved. This is free software. That means you are free
# to use or modify it for your own usage but not for resale. 
# Help me get the word out about my blog by keeping this header
# in place. 
declare upper;
input period = AggregationPeriod.DAY ;
#hint period: time period to use for aggregating implied volatility. sdi_ivp rev: 1.2 http://www.smallDogInvestor.com 
input length =252 ;
#hint length: #bars to use in implied volatility calculation.
def ivGapHi = if isnan(imp_volatility(period=period)) then 99999999999 else imp_volatility(period=period);
def ivGapLo = if isnan(imp_volatility(period=period)) then -99999999999 else imp_volatility(period=period);
def periodHigh = highest( ivGapLo,length=length);
def periodLow = lowest( ivGapHi, length=length);
def ivRange = periodHigh - periodLow ;
def ivp = round( 100*(imp_volatility(period=period) - periodLow)/ivRange, 0);
plot labelColor = 0; # only to pull in color select widget
labelColor.setHiding(1) ; #never want to show this
labelColor.hideBubble();
labelColor.hideTitle();
labelColor.setDefaultColor(color.PLUM);
AddLabel(1, Concat("IV%: ", ivp), labelColor.takeValueColor() );
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