Having troubles with scanning a customized indicator

[Daniel7895]

I'm having troubles with scanning a customized indicator, on chart the indicator works just fine but the scanner can not seem to scan for it when extended hours is checked off.
Demonstration.
The code for this indicator:

input Period = 300;
input SignalPeriod = 150;

def Gap = open - close[1];

def gapUp;

if Gap > 0
then {

    gapUp = Gap;

} else {

    gapUp = 0;

}

def gapDn;

if Gap < 0
then {

    gapDn = 0 - Gap;

} else {

    gapDn = 0;

}

def gapsUp = Sum(gapUp, Period);
def gapsDn = Sum(gapDn, Period);

def gapRatio;

if gapsDn == 0
then {

    gapRatio = 1;

} else {

    gapRatio = 100.0 * gapsUp / gapsDn;

}


def Signal;

if close > 0
then {

    Signal = SimpleMovingAvg(gapRatio, SignalPeriod);

} else {

    Signal = double.NaN;

}

def Ratio;

if close > 0
then {

    Ratio = gapRatio;

} else {

    Ratio = double.NaN;

}


plot Buy = Signal > Signal[1];

It is based on an indicator from this article: https://traders.com/Documentation/FEEDbk_docs/2024/01/TradersTips.html
And further investigated on Tradingview: https://www.tradingview.com/script/52wKLj6P-TASC-2024-01-Gap-Momentum-System/

 

[Joshua]

The length is exceeding the range of historical data that is available to the scanner. The way it works is kind of weird, it goes by a number of days worth of data. So, when you enable extended hours, those additional bars still fit within the date range, which gives you more bars to work with. You can read more about it at the bottom of this page, but that documentation has been dead wrong for years. The real size is much smaller, and it seems it's gotten even worse very recently.

 

[Daniel7895]

The length is exceeding the range of historical data that is available to the scanner. The way it works is kind of weird, it goes by a number of days worth of data. So, when you enable extended hours, those additional bars still fit within the date range, which gives you more bars to work with. You can read more about it at the bottom of this page, but that documentation has been dead wrong for years. The real size is much smaller, and it seems it's gotten even worse very recently.

Well that's unfortunate..
Thanks.