How Is Trend Reversal Calculated

[JLEE]

such as this:

input usemanualfibskip = no;#Hint usemanualfibskip: Select no to use preprogrammed fibskip amounts. Select no, to use the amount entered at input fibskip.
input fibskip = .50;#Hint fibskip: Set input usemanualfibskip == yes to use this amount versus preprogrammed amounts. Standard is 1.0. This is percentage difference between fib high and low before a new fib grid created.
def showBubblesfibratio = no;
def showFibLabel = no;#Hint showfibLabel: Select yes to show label of current fib level as of last price
def showfiblines = no;
def fib1level = .236;
def fib2level = .382;
def fibMlevel = .500;
def fib3level = .618;
def fib4level = .786;
#Fibs
def datacount2 = (HighestAll(data1) - data1[1]);
def numberfibretracementstoshow = 2;
def fibskipit = if usemanualfibskip == no then if close > 800 then .25 else .5 else fibskip;
def EIfibh = if EISave == priceh and AbsValue(EISave - EISave[1]) > priceh * fibskipit * .01 then priceh else EIfibh[1];
def EIfibl = if EISave == pricel and AbsValue(EISave - EISave[1]) > priceh * fibskipit * .01 then pricel else EIfibl[1];
def range = EIfibh - EIfibl;
def fibH = if showfiblines == no then Double.NaN else if datacount2 <= numberfibretracementstoshow then EIfibh else Double.NaN;
def fibL = if showfiblines == no then Double.NaN else if datacount2 <= numberfibretracementstoshow then EIfibl else Double.NaN;
def fibM = if showfiblines == no then Double.NaN else if datacount2 <= numberfibretracementstoshow then EIfibl + range * fibMlevel else Double.NaN;
def fib1 = if showfiblines == no then Double.NaN else if datacount2 <= numberfibretracementstoshow then EIfibl + range * fib1level else Double.NaN;
def fib2 = if showfiblines == no then Double.NaN else if datacount2 <= numberfibretracementstoshow then EIfibl + range * fib2level else Double.NaN;
def fib3 = if showfiblines == no then Double.NaN else if datacount2 <= numberfibretracementstoshow then EIfibl + range * fib3level else Double.NaN;
def fib4 = if showfiblines == no then Double.NaN else if datacount2 <= numberfibretracementstoshow then EIfibl + range * fib4level else Double.NaN;

AddLabel(showFibLabel, Concat( "Current Fib Level ", AsPercent((close - EIfibl) / (range))), if close > EIfibl then Color.GREEN else if EIfibh == close then Color.WHITE else Color.RED);

AddChartBubble(showBubblesfibratio and !IsNaN(EI) and BarNumber() != 1, if isUp then priceh * (1 + bubbleoffset) else pricel * (1 - bubbleoffset) , if isUp then AsPercent((priceh - EIfibl) / (range)) else AsPercent((pricel - EIfibl) / range), if isUp and chghigh > 0 then Color.DARK_GREEN else if isUp and chghigh < 0 then Color.DARK_RED else if isUp then Color.DARK_GREEN else if !isUp and chglow > 0 then Color.DARK_GREEN else if !isUp and chglow < 0 then Color.DARK_RED else Color.DARK_RED, isUp);

 

[JLEE]

again thank you @Pensar for redeveloping the code into a materially more eloquent and understandable structure

@rad14733 also thank you. this is clearer to me (in a murky pond kinda of way)

@rad14733 if i may tease your brain, i am stuck in a logic loop within <def signal> and <def dir> which both reach up into EIL and EIH. but if i read the <def EIL> correctly its simply asking if EI is a real number & has it changed and if so then simply give me the MAL or MAH as the case may be. BUT if this is so then in the <def signal> equation reads:

dir>0 AND MAL > MAL [which is impossible since they are the same number] which then pushes to later in equation to then if dir <0 AND MAH <MAH [which again is not possible] which then just dumps to just showing the last candle signal value. its a loop assuming my method is zigzagMovingAverage from <def priceh> and <def pricel> on lines 24 and 25

but it cannot be a loop because the code works and there are actually output of arrows which depends on there not being a loop obviously. So i am clearly missing something but just cannot get. Any assistance greatly appreciated

 

[Pensar]

dir>0 AND MAL > MAL [which is impossible since they are the same number] which then pushes to later in equation to then if dir <0 AND MAH <MAH [which again is not possible] which then just dumps to just showing the last candle signal value. its a loop assuming my method is zigzagMovingAverage from <def priceh> and <def pricel> on lines 24 and 25

@JLEE Note that it doesn't matter whether the method is based on the moving averages or not -

• If the "average" method is selected, then the ZigZag uses the exponential average of the high and low of the past five bars as it's input
• If the "high_low" method is selected, then the ZigZag uses the the high and low of price as it's input

The same calculations apply regardless which method is selected.
One thing that might help you visualize what each variable is doing is to change the "def" to "plot" instead. If any variable is recursive, though, then you will have to create a new plot for that variable.