Dinapoli Detrended Oscillator (to plot 2)

[Anson]

I was hoping someone could modify the Dinapoli Detrended Oscillator to plot 2 lines. One 14-period and one 7-period. Also ideally change the plot from using just the "Close" value to using the "HLC/3" instead.

Would be grateful if someone could help out with this as I have no idea how to start.


Many thanks!

[Anson]

It comes with eSignal by default but I'll attach it here anyway.

[DuaneG]

Hi Anson,

I'm sure there is a more effective way to do this, but I added a second DiNapoli EFS to my advanced chart window. By changing the values and colors of the indicator though the EDIT STUDIES feature, I was able to get the crossover effect. I didn't change the HLC/3 to calculate on the close. Once this is done, I simply used the SHIFT and drag method to overlay the studies. Again, there is probably a cleaner way to do this, but this may be a good starting point. Anyone with additional comments, please feel free to chime in.

[eSignal_JasonK]

Hello Anson,

The easiest way to accomplish this is to write a new formula and call \DiNapoli\Detrended Oscillator.efs with the call() function twice. Try the following.

2DetrendOsc.efs

function preMain() {
    setStudyTitle("2 DiNapoli Detrended Oscillators ");
    setCursorLabelName("D1", 0);
    setCursorLabelName("D2", 1);
    setDefaultBarFgColor(Color.blue, 0);
    setDefaultBarFgColor(Color.red, 1);
    addBand(0, PS_SOLID, 1, Color.black, "zero");
}

var bEdit = true;

function main(Length1, Length2) {
    if (Length1 == null) Length1 = 7;
    if (Length2 == null) Length2 = 14;
    
    if (bEdit == true) {
        setCursorLabelName("Detrend Osc " + Length1, 0);
        setCursorLabelName("Detrend Osc " + Length2, 1);
        bEdit = false;
    }
    
    var D1 = call("/DiNapoli/Detrended Oscillator.efs", Length1);
    var D2 = call("/DiNapoli/Detrended Oscillator.efs", Length2);
    if (D1 == null || D2 == null) return;
    
    return new Array(D1, D2);
} 

[Anson]

Originally posted by JasonK
Hello Anson,

The easiest way to accomplish this is to write a new formula and call \DiNapoli\Detrended Oscillator.efs with the call() function twice. Try the following.

JasonK and DuaneG,

Thanks alot for the help! That was a great solution, Jason.

I actually like the Detrended Oscillators alot for several reasons but probably the main reason would be that they are not normalized like many other indicators and are sensitive. However, a quickly expanding number of people prefer the "HLC/3" plot over the "Close" plot these days.

I don't mean to trouble you guys again but could I trouble you guys to modify the original script attached in first post and make it use "HLC/3" value instead of the "Close"? Maybe under a new efs name? I tried it but failed miserably. I'm a real efs failure.

Then anyone who would like to plot the oscillators the same way can use these newly modified HLC/3 Detrended Oscillators and have the other script Jason has created, call them twice!

[eSignal_JasonK]

Hello Anson,

Here's the HLC/3 version, Detrended Oscillator2.efs. Save the formula above to \Formulas\DiNapoli\. To use this version with the 2DetrendOsc.efs, add the "2" to the file name in the call() functions.

[Anson]

Many thanks, Jason!
Just what I needed.