Hi,

I want to build Indicator IV rank but IV in TS sometimes have Zero Value or the value Spike so I want to Filter that but the indicator become error. Can anyone help me to fix this.

Thanks in advance.

My code now is :

inputs :
Length(252),
IVSpikeRatio(2);

variables:
IV(0),
IV1(0),
IVH(0),
IVL(0),
HL(0),
Rank(0);


IV = IVolatility;
IV1 = IV[1] * IVSPikeRatio; {Criteria for Spike IV}

If IV <= 0 then IV = IV[1]; {For Filtering the Zero Value IV}

//If IV >= IV1 then IV = IV[1]; {For Filtering Spike IV Value}


Plot1 (IV, !("IV ALL"));


IVH = Highest(IV,Length)[1];
IVL = Lowest(IV,Length)[1];

If (IVH - IVL) > 0 then Begin
HL = (IVH - IVL);
Rank = ((IV - IVL) / HL);
End
else Begin
Rank = 0;
End;

//Plot1 (IV1,"IV1");
Plot2 (IVH,"Highest");
Plot3 (IVL,"Lowest");
//Plot4 (IV,"IV");
Plot5 (Rank, "IV Rank 66");

SetPlotColor(2,Green);
SetPlotColor(3,Red);
//SetPlotColor(1,Yellow);
//SetPlotColor(4,Blue);
SetPlotColor(5,Blue);

My Problem is the spike filter result IV is Zero.

a121e,

what is the exact error that you are facing with the code?

Regards,

ABCTG

Hi ABCTG,

the problem is when I want to to filter the sudden spike IV the result is the IV become Zero.

I dont know why and how to fix that.

a121e,

I would suggest to start simple and just plot IV and IV1. What is the outcome of that?

 

Code

inputs : IVSpikeRatio(2); variables: IV(0), IV1(0); IV = IVolatility; IV1 = IV[1] * IVSPikeRatio; {Criteria for Spike IV} If IV <= 0 then IV = IV[1]; {For Filtering the Zero Value IV} Plot1 (IV, "IV" ); Plot2 (IV1 , "IV1" );

If this is giving you what you want, great, add the spike filter. What is the outcome now?

 

Code

inputs : IVSpikeRatio(2); variables: IV(0), IV1(0); IV = IVolatility; IV1 = IV[1] * IVSPikeRatio; {Criteria for Spike IV} If IV <= 0 then IV = IV[1]; {For Filtering the Zero Value IV} If IV >= IV1 then IV = IV[1]; {For Filtering Spike IV Value} Plot1 (IV, "IV" ); Plot2 (IV1 , "IV1" );

Post the screenshots for the two outcomes.

Regards,

ABCTG

Hi ABCTG,

The result is :

For the zero IV is gone but the spike is still there and the second Code give result Zero value.

Regards,
Arie

a121e,

what will be the value for IV[1] on the very first bar that you compute your code? Think about what this will result in with your code.

Regards,

ABCTG

Hi ABCTG,

I think the result is zero.

I Guess I solve the problem even I dont know why the problem is finished. It Looks like suddenly works.

The final is like in the picture, the Zero IV and the Spike IV is gone.

the code is :

inputs :
IVSpikeRatio(2);

variables:
IV(0),
IV1(0),
IVSpike(0);

IV = IVolatility;
IVSPike = IV[1] * IVSPikeRatio; {Criteria for Spike IV}

If IV <= 0 then IV = IV[1]; {For Filtering the Zero Value IV}

//Filter for Spike
If IV >= IVSpike then
Begin
IV1 = IV[1];
End
Else
Begin
IV1 = IV;
End;

Plot1 (IV1, "IV Filter" );



Thanks for your guidance ABCTG

Regards,
Arie

a121e,

I think so, too.

IV[1] could simply be 0 on the first bar. This results in "IVSPike = IV[1] * IVSPikeRatio;" being zero as well
and with "If IV <= 0 then IV = IV[1];" you make IV = 0, too.
Therefore on the next bar IV[1] will be 0 again and your code simply created a situation where you keep setting IV to 0.

I am glad to hear that you got it working.

Regards,

ABCTG