L3 Banker Fund Flow Trend Oscillator for ThinkOrSwim

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CSS:
#// This source code is subject to the terms of the Mozilla Public License 2.0 at https://mozilla.org/MPL/2.0/
#// © blackcat1402
#study("[blackcat] L3 Banker Fund Flow Trend Oscillator", overlay=false)
# Converted and mod by [email protected] - 02/2023
# Update - added option for source selection
declare lower;
#//functions
input BarColor = no;
input SmoothingLength = 13;
input SourceType = {Default "High/Low", "CCHOL"};
def na = Double.NaN;
def last = isNaN(close[1]);
#//define typical price for banker fund
def typ = (2 * close + high + low + open) / 5;
def type = SourceType==SourceType."High/Low";
#xrf(values, length) =>
script xrf {
    input values = close;
    input length = 34;
    def r_val;# = float(na)
    r_val = if length >= 1 then
                fold i = 0 to length +1 with p=values do
             if IsNaN(p) or !IsNaN(values[i]) then values[i] else p else Double.NaN;
    plot out = r_val;
}
#xsa(src,len,wei) =>
script xsa {
    input src = close;
    input len = 5;
    input wei = 1;
    def sumf;# = 0.0
    def ma;# = 0.0
    def out;# = 0.0
    sumf = CompoundValue(1, sumf[1] - src[len] + src , src);
    ma   = if IsNaN(src[len]) then Double.NaN else sumf / len;
    out  = if IsNaN(out[1]) then ma else (src * wei + out[1] * (len - wei)) / len;
    plot return = out;
}
def wmCal = (close - Lowest(low, 27)) / (Highest(high, 27) - Lowest(low, 27)) * 100;

#//set up a simple model of banker fund flow trend  
def fundtrend = (3 * xsa(wmCal, 5, 1) - 2 * xsa(xsa(wmCal, 5, 1), 3, 1) - 50) * 1.032 + 50;

#//lowest low with mid term fib # 34
def lol = Lowest(if type then low else typ, 34);
#//highest high with mid term fib # 34
def hoh = Highest(if type then high else typ, 34);
#//define banker fund flow bull bear line
def bullbear = (typ - lol) / (hoh - lol) * 100;
def bullbearline = ExpAverage(bullbear, SmoothingLength);
#//define banker entry signal
def bankerentry = Crosses(fundtrend, bullbearline, CrossingDirection.ABOVE) and bullbearline < 25;
def bankerExit = Crosses(fundtrend, bullbearline, CrossingDirection.BELOW) and bullbearline > 75;

#//banker increase position with green candle
def UpCandle = fundtrend > bullbearline;
def WeakUp   = fundtrend < (xrf(fundtrend * 0.95, 1));
def DnCandle = fundtrend < bullbearline;
def WeakDn   = fundtrend < bullbearline and fundtrend > (xrf(fundtrend * 0.95, 1));

# Plot the new Chart
#//banker fund entry with yellow candle
AddChart(high = if bankerExit then 100 else na, low = 0 , open = 100,  close = 0,
         type = ChartType.CANDLE, growcolor =  Color.DARK_RED);

AddChart(high = if bankerentry then 100 else na, low = 0 , open = 100,  close = 0,
         type = ChartType.CANDLE, growcolor =  CreateColor(26, 70, 85));

AddChart(high = if UpCandle then bullbearline else na , low = fundtrend , open = fundtrend,  close =  bullbearline,
         type = ChartType.CANDLE, growcolor =  CreateColor(7,205,15));

AddChart(high = if WeakUp then bullbearline else na , low = fundtrend , open = fundtrend,  close = bullbearline,
         type = ChartType.CANDLE, growcolor =  CreateColor(188,245,188));

AddChart(high = if DnCandle then bullbearline else na , low = fundtrend , open = bullbearline,  close =   fundtrend,
         type = ChartType.CANDLE, growcolor =  Color.RED);

AddChart(high = if WeakDn then bullbearline else na , low = fundtrend , open = bullbearline,  close =   fundtrend,
         type = ChartType.CANDLE, growcolor =  Color.PINK);

#/overbought and oversold threshold lines
def h1 = if last then na else 80;
def h2 = if last then na else 20;
def h3 = 10;
def h4 = 90;
plot h5 = if last then na else 50;
h5.SetDefaultColor(Color.DARK_GRAY);

AddCloud(h2, h3, CreateColor(157,157,0));#color=color.yellow,transp=70)
AddCloud(h4, h1, CreateColor(157,0 ,157));#=color.fuchsia,transp=70)

AssignPriceColor(if !BarColor then Color.CURRENT else
                 if bankerentry then Color.CYAN else
                 if bankerExit then Color.MAGENTA else
                 if WeakDn then Color.DARK_RED else
                 if DnCandle then Color.RED else
                 if WeakUp then Color.DARK_GREEN else
                 if UpCandle then Color.GREEN else Color.CURRENT);

#---- END CODE

Very intriguing!

What's the primary change in this latest update? Does it have a "Short" signal?
I realize this is a lower study; however, on the original post there appears to be a cyan colored confirmation candle on the top chart. Is that from another study? I am not getting that on my chart.

Thank you
 

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DeepThinker

Member
VIP
Very intriguing!

What's the primary change in this latest update? Does it have a "Short" signal?
I realize this is a lower study; however, on the original post there appears to be a cyan colored confirmation candle on the top chart. Is that from another study? I am not getting that on my chart.

Thank you
I believe there is an updated version from the author if you scroll through the posts.
 

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