Hi all, I'm currently using Midas, a slightly different anchored Vwap based on cumulative volume, as dinamyc S/R curve however i was unable to plot correctly the standard deviation bands.
I've tried to use the same formula used on vwap band but after several hours I cannot figured out how to do it properly, so I gave up, the only thing i was able to do it's creating crazy pop-art line.
Someone knows how to do it? @Fat Tails or someone else even if you are using NT do you have some hint for MC?
thanks

 

Code

inputs: price1(L), StartTime( 930 ), StartMonth( 11 ), StartDay( 25 ), StartYear( 2015 ), PlotStdev1(false), PlotStdev_1(false), PlotStdev2(false), PlotStdev_2(false), PlotStdev3(false), PlotStdev_3(false); variables: StartCalcDate( 0 ), VolumeValue( 0 ), MedPrice( 0 ), PV( 0 ), CumulativeVolume( 0 ), CumulativePV( 0 ), Started( false ), Denom( 0 ), KeyCumVol( 0 ), KeyCumPV( 0 ), MidasValue( 0 ) , Count(1), VolMidasariance(0), VolMidasSD(0); if CurrentBar = 1 then StartCalcDate = ELDate( StartMonth, StartDay, StartYear ) ; { Midas Calculation } if (Date >= StartCalcDate and Time >= StartTime) or Date > StartCalcDate then begin VolumeValue = iff( BarType <= 1, Ticks, Volume ) ; MedPrice = price1;//high, low, avgprice, MedianPrice (ancorata da me) PV = MedPrice * VolumeValue ; CumulativeVolume = VolumeValue + CumulativeVolume ; CumulativePV = PV + CumulativePV ; end ; if Started = false and ( ( Date >= StartCalcDate and Time >= StartTime ) and ( ( Time[1] < StartTime or Date[1] < StartCalcDate ) or Date[1] > StartCalcDate ) ) then begin Started = true ; Denom = 1 ; KeyCumVol = CumulativeVolume ; KeyCumPV = CumulativePV ; end else if Denom >= 1 then Denom = CumulativeVolume - KeyCumVol ; if Started then begin if Denom > 1 then MidasValue = ( CumulativePV - KeyCumPV ) / Denom else if Denom = 1 then MidasValue = MedPrice ; Plot1( MidasValue, "Midas" ) ; //Start calculation for Standard Deviation end; Value1 = 0; Value2 = 0; Value3 = 0; if (Date >= StartCalcDate and Time >= StartTime) or Date > StartCalcDate then begin For Value1 = 0 To Count Begin Value2 = ((UpTicks[Value1]+DownTicks[Value1])/(UpTicks+DownTicks)) * (Square(price1[Value1]-MidasValue)); Value3 = Value3 + Value2; End; VolMidasariance = Value3; VolMidasSD = SquareRoot(VolMidasariance); if PlotStdev1 then Plot2(MidasValue + VolMidasSD, "Midas1SDUp"); if PlotStdev_1 then Plot3(MidasValue - VolMidasSD, "Midas1SDDown"); if PlotStdev2 then Plot4(MidasValue + (2*VolMidasSD), "Midas2SDUp"); if PlotStdev_2 then Plot5(MidasValue - (2*VolMidasSD), "Midas2SDDown"); if PlotStdev3 then Plot6(MidasValue + (3*VolMidasSD), "Midas3SDUp"); if PlotStdev_3 then Plot7(MidasValue - (3*VolMidasSD), "Midas3SDDown"); end;

If you need a hint, you should look at the existing C# for Ninja and C++ for Sierra where this indicator already exists.

Mike

Big Mike 

If you need a hint, you should look at the existing C# for Ninja and C++ for Sierra where this indicator already exists. Mike

but I need it for easylanguage, beside there are valid vwap formulas for this language too, I've just tried to paste it but can't understand why doesn't work, after all should be a simple square root of the variance.

This is the part for the stddev

//Start calculation for Standard Deviation
end;
Value1 = 0;
Value2 = 0;
Value3 = 0;
if (Date >= StartCalcDate and Time >= StartTime)
or Date > StartCalcDate
then begin

//variance part
For Value1 = 0 To Count Begin
Value2 = ((UpTicks[Value1]+DownTicks[Value1])/(UpTicks+DownTicks)) * (Square(price1[Value1]-MidasValue));
Value3 = Value3 + Value2;
End;

VolMidasariance = Value3;
VolMidasSD = SquareRoot(VolMidasariance);

I guess it's beacause you var "count" is = 1.
Thanks for the code, cmq!