5Cent line on previous candle

[JDS]

Hello, I am trying to get a horizontal line that extends to the left and right of the chart at all bars. I cant get the line to stay straight and cant get the line to plot on the previous candle. Can someone help with this?

# Horizontal line 5 cents below the previous candle's high


input offset = 0.05; # Amount below previous high (default 5 cents)

def prevHigh = high[1];
def lineLevel = prevHigh - offset;

plot LineBelowPrevHigh = lineLevel;
LineBelowPrevHigh.SetDefaultColor(Color.CYAN);
LineBelowPrevHigh.SetStyle(Curve.SHORT_DASH);
LineBelowPrevHigh.SetLineWeight(2);

 

[Svanoy]

# Horizontal line 5 cents below the previous candle's high

input offset = 0.05; # Amount below previous high (default 5 cents)

def prevHigh = high[1];
def lineLevel = if !IsNaN(close) then
                fold L = 0 to 999
                while !IsNaN(GetValue(close,-L))
                do GetValue(prevHigh,-L)
                else lineLevel[1];

plot LineBelowPrevHigh = lineLevel - offset;
LineBelowPrevHigh.SetDefaultColor(Color.CYAN);
LineBelowPrevHigh.SetStyle(Curve.SHORT_DASH);
LineBelowPrevHigh.SetLineWeight(2);