Inhibit Initial Plot before Conditions defined

[atcsam]

Trying to update the Candle Pattern presented by JT_479 (really like this for Price Action)....
Trying to eliminate a plot (extended lines) before the condition is met. If you run a fit studies, there is always a bunch of garbage on the zero line until a condition it met.

I've ran out of ideas, Ignorance meter is pegged, and deferring to the Wizards.... This should be coding 101.

Here is a snippet of code I'm working with, I figure this out I can fix the rest.
This code will plot a Bull support on a Bullish Engulfing pattern.
Problem is it plots at Zero Line before a Bull Support is defined

#----------------------------------------------------------
#Bullish Engulfing - A Bottom Reversal. The bullish candle wraps around the entire body of the previous candle in a downtrend. Lowest low of the two sessions is Support.
#----------------------------------------------------------
#def Supportcount = 0;
def IsUp = close > open;
def IsDown = close < open;
def BullEngulf =
IsDescending(close, 3)[2] and
IsDown[1] and
IsUp[0] and
open[1] < close[0] and
close[1] >= open[0];
def barNumber = BarNumber();
plot BullSupport = if BullEngulf and low > low [1] then low[1] else if BullEngulf and low <= low[1] then low else Double.NaN;
def Supportcount = if (BullSupport) then 1 else 0;
BullSupport.SetPaintingStrategy(PaintingStrategy.DASHES);
BullSupport.SetDefaultColor(Color.DARK_ORANGE);
BullSupport.SetLineWeight(2);
def Bullext = if IsNaN(BullSupport)then Bullext[1] else BullSupport;
#Problem Child inhibit plot before BullSuppot defined
plot Bullextline =  Bullext;
Bullextline.SetPaintingStrategy(PaintingStrategy.DASHES);
Bullextline.SetDefaultColor(Color.DARK_ORANGE);

#----------------------------------------------------------------------------------------------
#----------------------------------------

AssignPriceColor(if  BullEngulf then Color.YELLOW else Color.CURRENT);

 

[SleepyZ]

Trying to update the Candle Pattern presented by JT_479 (really like this for Price Action)....
Trying to eliminate a plot (extended lines) before the condition is met. If you run a fit studies, there is always a bunch of garbage on the zero line until a condition it met.

I've ran out of ideas, Ignorance meter is pegged, and deferring to the Wizards.... This should be coding 101.

Here is a snippet of code I'm working with, I figure this out I can fix the rest.
This code will plot a Bull support on a Bullish Engulfing pattern.
Problem is it plots at Zero Line before a Bull Support is defined

#----------------------------------------------------------
#Bullish Engulfing - A Bottom Reversal. The bullish candle wraps around the entire body of the previous candle in a downtrend. Lowest low of the two sessions is Support.
#----------------------------------------------------------
#def Supportcount = 0;
def IsUp = close > open;
def IsDown = close < open;
def BullEngulf =
IsDescending(close, 3)[2] and
IsDown[1] and
IsUp[0] and
open[1] < close[0] and
close[1] >= open[0];
def barNumber = BarNumber();
plot BullSupport = if BullEngulf and low > low [1] then low[1] else if BullEngulf and low <= low[1] then low else Double.NaN;
def Supportcount = if (BullSupport) then 1 else 0;
BullSupport.SetPaintingStrategy(PaintingStrategy.DASHES);
BullSupport.SetDefaultColor(Color.DARK_ORANGE);
BullSupport.SetLineWeight(2);
def Bullext = if IsNaN(BullSupport)then Bullext[1] else BullSupport;
#Problem Child inhibit plot before BullSuppot defined
plot Bullextline =  Bullext;
Bullextline.SetPaintingStrategy(PaintingStrategy.DASHES);
Bullextline.SetDefaultColor(Color.DARK_ORANGE);

#----------------------------------------------------------------------------------------------
#----------------------------------------

AssignPriceColor(if  BullEngulf then Color.YELLOW else Color.CURRENT);

Here is one way

The image in the upper panel shows the code below's plot without a zero line. The lower panel is your code to show that the plots are the same as in the upper panel.

#----------------------------------------------------------
#Bullish Engulfing - A Bottom Reversal. The bullish candle wraps around the entire body of the previous candle in a downtrend. Lowest low of the two sessions is Support.
#----------------------------------------------------------
#def Supportcount = 0;
def IsUp   = close > open;
def IsDown = close < open;
def BullEngulf =
IsDescending(close, 3)[2] and
IsDown[1] and
IsUp[0] and
open[1] < close[0] and
close[1] >= open[0];

def barNumber = BarNumber();

def BullengulfSupport = if BullEngulf and low > low [1]
then low[1]
else if (BullEngulf) and low <= low[1]
then low 
else BullengulfSupport[1];

plot bullsupport = if BullengulfSupport == 0 then Double.NaN else BullengulfSupport;
def Supportcount = if (bullsupport) then 1 else 0;
bullsupport.SetPaintingStrategy(PaintingStrategy.DASHES);
bullsupport.SetDefaultColor(Color.DARK_ORANGE);
bullsupport.SetLineWeight(2);

def Bullext = if IsNaN(close)
then Bullext[1]
else bullsupport;
#Problem Child inhibit plot before BullSuppot defined
plot Bullextline =  Bullext;
Bullextline.SetPaintingStrategy(PaintingStrategy.DASHES);
Bullextline.SetDefaultColor(Color.DARK_ORANGE);

#----------------------------------------------------------------------------------------------
#----------------------------------------

AssignPriceColor(if  BullEngulf then Color.YELLOW else Color.CURRENT);

 

[atcsam]

Thanks, so it's the "BullengulfSupport" test and IsNan(close) that I needed....
I presume this will also stop the repainting, (which I kind of like), might use a bubble or something to flash new support/ resistance levels in the making...

Now to fix the rest of the script, will post the modifications once I get it behaving.

Thanks again..