Horizontal High/Low Lines for the 10 Bars

[samhanoh]

Hi everyone,
I'm looking for help creating a ThinkScript study that meets the following conditions:

Requirements:

1. Plot two horizontal lines:
   • One for the highest high from the 10 bars before yesterday.
   • One for the lowest low from the same 10 bars.
2. These lines should:
   • Be perfectly horizontal (i.e., fixed value, not changing every bar).
   • Display for only the most recent 10 bars on the chart.
   • Update automatically every new bar (so as time moves forward, the lines shift forward too, based on the 10-bar window ending at the bar before the current one).

 

[Svanoy]

Input Length = 10;

Def BarNumber = if !IsNaN(close) then BarNumber() else Double.NaN;
Def LastBar = HighestAll(BarNumber);

Def HHigh = Highest(high,Length);
Def LLow = Lowest(low,Length);

Plot HLine = if LastBar-BarNumber<Length+1 && LastBar-BarNumber>0 then GetValue(HHigh,-(LastBar-BarNumber)+1) else Double.NaN;;
HLine.SetPaintingStrategy(PaintingStrategy.DASHES);
HLine.SetDefaultColor(Color.Yellow);
Plot LLine = if LastBar-BarNumber<Length+1 && LastBar-BarNumber>0 then GetValue(LLow,-(LastBar-BarNumber)+1) else Double.NaN;;
LLine.SetPaintingStrategy(PaintingStrategy.DASHES);
LLine.SetDefaultColor(Color.Yellow);