Weis Wave Volume Indicator for ThinkorSwim

BenTen

Administrative
Staff
VIP
Here is the Weis Wave Volume indicator for ThinkorSwim converted from the Lazy Bear's version over at TradingView. In addition, I also found another indicator called Weis Wave Volume with ZigZag so I'll include that in this post as well.

xTVRW5O.png


thinkScript Code (Lazy Bear)

Rich (BB code):
#
# @author LazyBear
# List of all my indicators: https://www.tradingview.com/v/4IneGo8h/
#
# study(" [LazyBear]", shorttitle="WWV_LB")
declare lower;
declare zerobase;

# trendDetectionLength=input(2)
input trendDetectionLength = 3;

# mov = close>close[1] ? 1 : close<close[1] ? -1 : 0
def mov = If(close > close[1], 1, If(close < close[1], -1, 0));

# trend= (mov != 0) and (mov != mov[1]) ? mov : nz(trend[1])
# might cause problems not using the nan if statement...
def trend = If((mov != 0) and (mov != mov[1]), mov, (trend[1])) ;
# isTrending = rising(close, trendDetectionLength) or falling(close, trendDetectionLength) //abs(close-close[1]) >= dif
def isTrending = IsAscending(close, trendDetectionLength) or IsDescending(close, trendDetectionLength);

# wave=(trend != nz(wave[1])) and isTrending ? trend : nz(wave[1])
# might be a problem not using the nan function here
def wave = If((trend != (wave[1])) and isTrending, trend , (wave[1]) );

# vol=wave==wave[1] ? (nz(vol[1])+volume) : volume
# might be a problem not using the nan function here
def vol = If(wave == wave[1] , ((vol[1]) + volume) , volume ) ;

# up=wave == 1 ? vol : 0
plot up = If(wave == 1 , vol , 0 );

# dn=showDistributionBelowZero ? (wave == 1 ? 0 : wave == -1 ? -vol : vol) : (wave == 1 ? 0 : vol)
# plot dn = If(wave == 1, 0, If(wave == -1, -vol, vol));
plot dn = If(wave == 1, 0, If(wave == -1, vol, vol));

# plot(up, style=histogram, color=green, linewidth=3)

# plot(dn, style=histogram, color=red, linewidth=3)

dn.setDefaultColor(color.red);
up.setDefaultColor(color.green);
dn.SetLineWeight(3);
up.SetLineWeight(3);
up.SetPaintingStrategy(PaintingStrategy.HISTOGRAM);
dn.SetPaintingStrategy(PaintingStrategy.HISTOGRAM);

Weis Wave Zig Zag with Volume

Rich (BB code):
#
# Weis Wave
#

#Note: The Weis Wave indicator shows price waves associated with the Weis Wave Volume lower indicator.
#Note: The reversalAmount: Indicate the minimum amount price must reverse before an inflection point can be formed. This value should be set the same on the lower Weis Wave Volume indicator.

declare upper;

input price = hlc3;
input reversalAmount = 1.0;
input reversalMode = {default price, percent};
input displayMode = {default volume, barNumber, barTotal, none};

def mode = if  reversalMode ==  reversalMode.price then ZigZagTrendSign(price = price, reversalAmount=reversalAmount) else ZigZagTrendPercent(price = price, reversalAmount=reversalAmount);
def inflection = if reversalMode == reversalMode.price then if !isNan(ZigZagSign(price = price, reversalAmount=reversalAmount)) then 1 else 0 else if !isNan(ZigZagPercent(price = price, reversalAmount=reversalAmount)) then 1 else 0;
rec trend = if inflection==1 and mode ==-1 then 1 else if inflection==1 and mode==1 then -1 else trend[1];

plot wave =  if  reversalMode ==  reversalMode.price then ZigZagSign(price = price, reversalAmount=reversalAmount) else ZigZagPercent(price = price, reversalAmount=reversalAmount);
wave.EnableApproximation();
wave.AssignValueColor(if trend[1] == 1 then color.green else color.red);
wave.SetLineWeight(3);

rec upWaveVolume = if inflection == 1 and trend == 1 and close > open then volume else if inflection == 1 and trend == 1 and close <= open then 0 else if trend == 1 or (inflection == 1 and trend == -1 and close >= open) then upWaveVolume[1] + volume else 0;
rec downWaveVolume = if inflection == 1 and trend == -1  and close < open then volume else if inflection == 1 and trend == -1 and close >= open then 0 else if trend == -1 or (inflection == 1 and trend == 1 and close <= open) then downWaveVolume[1] + volume else 0;

rec barsUp = if inflection == 1 and trend == 1  and close > open then 1 else if inflection == 1 and trend == 1 and close <= open then 0 else if trend == 1 or (inflection == 1 and trend == -1 and close >= open) then barsUp[1] + 1 else 0;
rec barsDown =  if inflection == 1 and trend == -1  and close < open then 1 else if inflection == 1 and trend == -1 and close >= open then 0 else if trend == -1 or (inflection == 1 and trend == 1 and close <= open) then barsDown[1] + 1 else 0;

plot uCount = if (displayMode == displayMode.barNumber and barsUp) then barsUp else double.nan;
uCount.SetPaintingStrategy(paintingStrategy.VALUES_BELOW);
uCount.SetDefaultColor(color.dark_green);

plot dCount = if (displayMode == displayMode.barNumber and barsDown) then barsDown else double.nan;
dCount.SetPaintingStrategy(paintingStrategy.VALUES_ABOVE);
dCount.SetDefaultColor(color.red);

plot uCountTot =  if (displayMode == displayMode.barTotal and barsDown == 1 and barsUp==0) then barsUp[1] else double.nan;
uCountTot.SetPaintingStrategy(paintingStrategy.VALUES_ABOVE);
uCountTot.SetDefaultColor(color.dark_green);

plot dCountTot = if (displayMode == displayMode.barTotal and barsDown==0 and barsUp==1) then barsDown[1] else double.nan;
dCountTot.SetPaintingStrategy(paintingStrategy.VALUES_BELOW);
dCountTot.SetDefaultColor(color.red);

plot uVol = if (displayMode == displayMode.volume and barsDown == 1 and barsUp==0) then upWaveVolume[1] else double.nan;
uVol.SetPaintingStrategy(paintingStrategy.VALUES_ABOVE);
uVol.SetDefaultColor(color.dark_green);

plot dVol = if (displayMode == displayMode.volume and barsUp == 1 and barsDown==0) then downWaveVolume[1] else double.nan;
dVol.SetPaintingStrategy(paintingStrategy.VALUES_BELOW);
dVol.SetDefaultColor(color.red);

Ord-Volume

Code:
#VM_Ord_Volume_v01
#by GrOwEx
#growex: I've read a book by Tim Ord....about price and volume
#growex: and i've written a study that calculates average volume on a swing...
#growex: it is similar to Weis Wave
#growex: WeisWave indicator calculates total volume of swing and TimOrd's one
#adapted from ZigZagSign study.
#calculate average volume on each candle

declare upper;

input price = close;
input reversalAmount = 1.0;
input showBubbles = no;
input showLabel = no;
input volumedivider = 1000;
Assert(reversalAmount > 0, "'reversal amount' should be positive: " + reversalAmount);

def barNumber = BarNumber();
def barCount = HighestAll(If(IsNaN(price), 0, barNumber));


def state = {default init, undefined, uptrend, downtrend};
def minMaxPrice;


if (GetValue(state, 1) == GetValue(state.init, 0)) {
    minMaxPrice = price;
    state = state.undefined;
} else if (GetValue(state, 1) == GetValue(state.undefined, 0)) {
    if (price <= GetValue(minMaxPrice, 1) - reversalAmount) {
        state = state.downtrend;
        minMaxPrice = price;
    } else if (price >= GetValue(minMaxPrice, 1) + reversalAmount) {
        state = state.uptrend;
        minMaxPrice = price;
    } else {
        state = state.undefined;
        minMaxPrice = GetValue(minMaxPrice, 1);
    }
} else if (GetValue(state, 1) == GetValue(state.uptrend, 0)) {
    if (price <= GetValue(minMaxPrice, 1) - reversalAmount) {
        state = state.downtrend;
        minMaxPrice = price;
    } else {
        state = state.uptrend;
        minMaxPrice = Max(price, GetValue(minMaxPrice, 1));
    }
} else {
    if (price >= GetValue(minMaxPrice, 1) + reversalAmount) {
        state = state.uptrend;
        minMaxPrice = price;
    } else {
        state = state.downtrend;
        minMaxPrice = Min(price, GetValue(minMaxPrice, 1));
    }
}


def isCalculated = GetValue(state, 0) != GetValue(state, 1) and barNumber >= 1;
def futureDepth =  barCount - barNumber;
def tmpLastPeriodBar;
if (isCalculated) {
    if (futureDepth >= 1 and GetValue(state, 0) == GetValue(state, -1)) {
        tmpLastPeriodBar = fold lastPeriodBarI = 2 to futureDepth + 1 with lastPeriodBarAcc = 1
            while lastPeriodBarAcc > 0
            do if (GetValue(state, 0) != GetValue(state, -lastPeriodBarI))
                then -lastPeriodBarAcc
                else lastPeriodBarAcc + 1;
    } else {
        tmpLastPeriodBar = 0;
    }
} else {
    tmpLastPeriodBar = Double.NaN;
}


def lastPeriodBar = if (!IsNaN(tmpLastPeriodBar)) then -AbsValue(tmpLastPeriodBar) else -futureDepth;


def currentPriceLevel;
def currentPoints;
if (state == state.uptrend and isCalculated) {
    currentPriceLevel =
        fold barWithMaxOnPeriodI = lastPeriodBar to 1 with barWithMaxOnPeriodAcc = minMaxPrice
            do Max(barWithMaxOnPeriodAcc, GetValue(minMaxPrice, barWithMaxOnPeriodI));
    currentPoints =
        fold maxPointOnPeriodI = lastPeriodBar to 1 with maxPointOnPeriodAcc = Double.NaN
            while IsNaN(maxPointOnPeriodAcc)
            do if (GetValue(price, maxPointOnPeriodI) == currentPriceLevel)
                then maxPointOnPeriodI
                else maxPointOnPeriodAcc;
} else if (state == state.downtrend and isCalculated) {
    currentPriceLevel =
        fold barWithMinOnPeriodI = lastPeriodBar to 1 with barWithMinOnPeriodAcc = minMaxPrice
            do Min(barWithMinOnPeriodAcc, GetValue(minMaxPrice, barWithMinOnPeriodI));
    currentPoints =
        fold minPointOnPeriodI = lastPeriodBar to 1 with minPointOnPeriodAcc = Double.NaN
            while IsNaN(minPointOnPeriodAcc)
            do if (GetValue(price, minPointOnPeriodI) == currentPriceLevel)
                then minPointOnPeriodI
                else minPointOnPeriodAcc;
} else if (!isCalculated and (state == state.uptrend or state == state.downtrend)) {
    currentPriceLevel = GetValue(currentPriceLevel, 1);
    currentPoints = GetValue(currentPoints, 1) + 1;
} else {
    currentPoints = 1;
    currentPriceLevel = GetValue(price, currentPoints);
}


plot "ZZ$" = if (barNumber == barCount or barNumber == 1) then price else if (currentPoints == 0) then currentPriceLevel else Double.NaN;


def zzSave = if !IsNaN("ZZ$") then price else GetValue(zzSave, 1);
def chg = price - GetValue(zzSave, 1);
def isUp = chg >= 0;
def isConf = AbsValue(chg) >= reversalAmount or (IsNaN(GetValue("ZZ$", 1)) and GetValue(isConf, 1));


rec v = if isUp then volume + v[1] else 0;
rec vd = if !isUp then volume + vd[1] else 0;
rec countup = if isUp then countup[1] + 1 else 0;
rec countdn = if !isUp then countdn[1] + 1 else 0;
def vline = countup;
def vdline = countdn;
def valueup = if v > v[-1] then Round(v / volumedivider, 2) else Double.NaN;
def valuedn = if vd > vd[-1] then Round(vd / volumedivider, 2) else Double.NaN;
def valuecountup = if vline > vline[-1] then vline else Double.NaN;
def valuecountdn = if vdline > vdline[-1] then vdline else Double.NaN;
#def avg =  Round(valueup / valuecountup, 2);
#plot ord_up = Round(valueup / valuecountup, 2);
#plot ord_dn = Round(valuedn / valuecountdn, 2);
#ord_dn.SetPaintingStrategy(PaintingStrategy.VALUES_BELOW);
#ord_up.SetPaintingStrategy(PaintingStrategy.VALUES_ABOVE);
"ZZ$".EnableApproximation();
"ZZ$".DefineColor("Up Trend", Color.UPTICK);
"ZZ$".DefineColor("Down Trend", Color.DOWNTICK);
"ZZ$".DefineColor("Undefined", Color.DARK_ORANGE);
"ZZ$".AssignValueColor(if !isConf then "ZZ$".Color("Undefined") else if isUp then "ZZ$".Color("Up Trend") else "ZZ$".Color("Down Trend"));
DefineGlobalColor("Unconfirmed", Color.DARK_ORANGE);
DefineGlobalColor("Up", Color.UPTICK);
DefineGlobalColor("Down", Color.DOWNTICK);
AddChartBubble(showBubbles and !IsNaN("ZZ$") and barNumber != 1, price,
if v > v[-1] then Round(valueup / valuecountup, 2) else if vd > vd[-1] then Round(valuedn / valuecountdn, 2) else double.nan, if !isConf then GlobalColor("Unconfirmed") else if isUp then GlobalColor("Up") else GlobalColor("Down"), isUp);
AddLabel(showLabel and barNumber != 1, (if isConf then "Confirmed " else "Unconfirmed ") + "ZigZag: " + chg, if !isConf then GlobalColor("Unconfirmed") else if isUp then GlobalColor("Up") else GlobalColor("Down"));
 
Last edited:

Topas

New member
VIP
It does not plot in, is idea why ? i tried couple of times ... can you post shareable link plz

 
Last edited:

BenTen

Administrative
Staff
VIP
@Topas I see what happen there. Go to Settings > Equities and make sure you enable "Show volume subgraph".

7DiCT5J.png


 
Last edited:

Topas

New member
VIP
It worked ... thank you. you know what i knew this option but did not realize this was the issue.

 
Last edited:

Chenthy73

New member
Thanks for sharing. One issue I found is that the 2nd one repaint historical bars (e.g., 5-6 bars which are already painted) from green to red or vice versa, which is a bad thing for after-fact editing. I fully understood the current bar in the making can change color, but not previous bars. I need to see if the first one by Lazy Bear do the same.

I don't think the two indicators you have listed in this post are the same. I don't know the original Tradingview pine indicator for the 2nd one above which repaints in ToS. Will look into it a little bit more after work.
 
Last edited:
Can someone add "Sound Alert" to Weis Wave Zig Zag with Volume, when it changes colors. Thanks
 
Last edited by a moderator:

thevelvetrock

New member
Weis Wave Zig Zag with Volume - excellent!
2 questions:
Hard to read eight, nine and ten digit numbers without commas.
Any way to add commas?
Weis Wave Volume under ZigZag is too sensitive, i.e., too many changes.
Is it possible to coordinate Weis Wave Volume with Zig Zag legs?
 

Johnny Cash

Member
VIP
I have this Wise wave volume code. Looks more accurate with the upper study

Code:
declare lower;

def price = hlc3;

input reversalAmount = 1.5;

input reversalMode = {price, default percent};

def mode = if reversalMode == reversalMode.price then ZigZagTrendSign(price = price, reversalAmount = reversalAmount) else ZigZagTrendPercent(price = price, reversalAmount = reversalAmount);

def inflection = if reversalMode == reversalMode.price then if !IsNaN(ZigZagSign(price = price, reversalAmount = reversalAmount)) then 1 else 0 else if !IsNaN(ZigZagPercent(price = price, reversalAmount = reversalAmount)) then 1 else 0;

rec trend = if inflection == 1 and mode == -1 then 1 else if inflection == 1 and mode == 1 then -1 else trend[1];



rec upWaveVolume = if inflection == 1 and trend == 1 and close > open then volume else if inflection == 1 and trend == 1 and close <= open then 0 else if trend == 1 or (inflection == 1 and trend == -1 and close >= open) then upWaveVolume[1] + volume else 0;

rec downWaveVolume = if inflection == 1 and trend == -1 and close < open then volume else if inflection == 1 and trend == -1 and close >= open then 0 else if trend == -1 or (inflection == 1 and trend == 1 and close <= open) then downWaveVolume[1] + volume else 0;



plot upvol = upWaveVolume;

upvol.SetDefaultColor(color.dark_green);

upvol.SetPaintingStrategy(PaintingStrategy.Histogram);

upvol.SetLineWeight(5);

plot dnvol = downWaveVolume;

dnvol.SetDefaultColor( Color.DownTICK);

dnvol.SetPaintingStrategy(PaintingStrategy.Histogram);

dnvol.SetLineWeight(5);
 
Last edited by a moderator:

asragov

Member
2019 Donor
VIP
This WeisWave looks interesting - I would appreciate if @BenTen et al. who are familiar with Thinkscript could explain a bit about what this script is doing. I haven't seen some of these commands / functions before.
 

Motar

New member
Thanks guys I'm really enjoying all your helpful info and indicators! Very excited to have found this site and you all. I'm wondering if there are any of these great volume indicators that work on my TOS mobile app? Seems to not transfer or work on the app? Thanks guys your rock!
 

Motar

New member
It seems to only show the Green buyers volume and no red below the zero line. Am I missing something? Thanks for the help guys!
Also I'm trying to find a 3 in 1 time frame for volume that averages them into one? I cannot remember where I saw it or what it was called. Any help on that one? Thanks again. Happy trading guys
 

ShinJ

New member
Same question as @thevelvetrock asked. Can somebody edit the zigzag code so that the volume number format can be changed? Reading 8/9 digit numbers is not very convenient. It would be nice to be able to round up the values, like David does in his webinars.

The indicator sums up the volume in the wave and displays the amount at the swing extremum. On very liquid instruments, the values are gigantic (8-9-10 digits), which is very uncomfortable to analyse.

So, this is the question. How to add a field that allows rounding out the output values?

Code is below. Thank you!

X4uC5AT.png


Code:
#
# Weis Wave
#

#Note: The Weis Wave indicator shows price waves associated with the Weis Wave Volume lower indicator.
#Note: The reversalAmount: Indicate the minimum amount price must reverse before an inflection point can be formed. This value should be set the same on the lower Weis Wave Volume indicator.

declare upper;

input price = hlc3;
input reversalAmount = 1.0;
input reversalMode = {default price, percent};
input displayMode = {default volume, barNumber, barTotal, none};

def mode = if  reversalMode ==  reversalMode.price then ZigZagTrendSign(price = price, reversalAmount=reversalAmount) else ZigZagTrendPercent(price = price, reversalAmount=reversalAmount);
def inflection = if reversalMode == reversalMode.price then if !isNan(ZigZagSign(price = price, reversalAmount=reversalAmount)) then 1 else 0 else if !isNan(ZigZagPercent(price = price, reversalAmount=reversalAmount)) then 1 else 0;
rec trend = if inflection==1 and mode ==-1 then 1 else if inflection==1 and mode==1 then -1 else trend[1];

plot wave =  if  reversalMode ==  reversalMode.price then ZigZagSign(price = price, reversalAmount=reversalAmount) else ZigZagPercent(price = price, reversalAmount=reversalAmount);
wave.EnableApproximation();
wave.AssignValueColor(if trend[1] == 1 then color.green else color.red);
wave.SetLineWeight(3);

rec upWaveVolume = if inflection == 1 and trend == 1 and close > open then volume else if inflection == 1 and trend == 1 and close <= open then 0 else if trend == 1 or (inflection == 1 and trend == -1 and close >= open) then upWaveVolume[1] + volume else 0;
rec downWaveVolume = if inflection == 1 and trend == -1  and close < open then volume else if inflection == 1 and trend == -1 and close >= open then 0 else if trend == -1 or (inflection == 1 and trend == 1 and close <= open) then downWaveVolume[1] + volume else 0;

rec barsUp = if inflection == 1 and trend == 1  and close > open then 1 else if inflection == 1 and trend == 1 and close <= open then 0 else if trend == 1 or (inflection == 1 and trend == -1 and close >= open) then barsUp[1] + 1 else 0;
rec barsDown =  if inflection == 1 and trend == -1  and close < open then 1 else if inflection == 1 and trend == -1 and close >= open then 0 else if trend == -1 or (inflection == 1 and trend == 1 and close <= open) then barsDown[1] + 1 else 0;

plot uCount = if (displayMode == displayMode.barNumber and barsUp) then barsUp else double.nan;
uCount.SetPaintingStrategy(paintingStrategy.VALUES_BELOW);
uCount.SetDefaultColor(color.dark_green);

plot dCount = if (displayMode == displayMode.barNumber and barsDown) then barsDown else double.nan;
dCount.SetPaintingStrategy(paintingStrategy.VALUES_ABOVE);
dCount.SetDefaultColor(color.red);

plot uCountTot =  if (displayMode == displayMode.barTotal and barsDown == 1 and barsUp==0) then barsUp[1] else double.nan;
uCountTot.SetPaintingStrategy(paintingStrategy.VALUES_ABOVE);
uCountTot.SetDefaultColor(color.dark_green);

plot dCountTot = if (displayMode == displayMode.barTotal and barsDown==0 and barsUp==1) then barsDown[1] else double.nan;
dCountTot.SetPaintingStrategy(paintingStrategy.VALUES_BELOW);
dCountTot.SetDefaultColor(color.red);

plot uVol = if (displayMode == displayMode.volume and barsDown == 1 and barsUp==0) then upWaveVolume[1] else double.nan;
uVol.SetPaintingStrategy(paintingStrategy.VALUES_ABOVE);
uVol.SetDefaultColor(color.dark_green);

plot dVol = if (displayMode == displayMode.volume and barsUp == 1 and barsDown==0) then downWaveVolume[1] else double.nan;
dVol.SetPaintingStrategy(paintingStrategy.VALUES_BELOW);
dVol.SetDefaultColor(color.red);
 

MerryDay

Well-known member
VIP
@ShinJ A search on this site returned 315 examples of how to round.

Round("number" = name of field to be rounded / 100000, "numberOfDigits" = 1);

I am not a programmer nor play one on TV. But for myself, I find searching for my own answers and modding the code on my own helps me understand what information the study is providing me and how to use it to analyze stocks.

To round the volumes printed on the Weis Wave chart by 100,000; replace the last six lines of the program with the following:

Code:
plot uVol = if (displayMode == displayMode.volume and barsDown == 1 and barsUp==0) then Round("number" = upWaveVolume[1] / 100000, "numberOfDigits" = 1)  else double.nan;
uVol.SetPaintingStrategy(paintingStrategy.VALUES_ABOVE);
uVol.SetDefaultColor(color.dark_green);

plot dVol = if (displayMode == displayMode.volume and barsUp == 1 and barsDown==0) then Round("number" = downWaveVolume[1] / 100000, "numberOfDigits" = 1) else double.nan;
dVol.SetPaintingStrategy(paintingStrategy.VALUES_BELOW);
dVol.SetDefaultColor(color.red);

For not "very liquid instruments", this will result in zero being displayed. Hope this helps.
 

option_trader

New member
I am new to code in thinkorswim. Can someone (@BenTen et al.) help me out to re-code the code below for use in mobile ? I find the Weis wave extremely useful. Thank you.

Code:
Code:
#
# Wies Wave Volume
#

#Note: The Weis Wave indicator shows price waves associated with the Weis Wave Volume lower indicator.
#Note: The reversalAmount: Indicate the minimum amount price must reverse before an inflection point can be formed. This value should be set the same on the lower Weis Wave Volume indicator.

declare lower;

input price = hlc3;
input reversalAmount = 1.0;
input reversalMode = {default price, percent};

def mode = if  reversalMode ==  reversalMode.price then ZigZagTrendSign(price = price, reversalAmount=reversalAmount) else ZigZagTrendPercent(price = price, reversalAmount=reversalAmount);
def inflection = if reversalMode == reversalMode.price then if !isNan(ZigZagSign(price = price, reversalAmount=reversalAmount)) then 1 else 0 else if !isNan(ZigZagPercent(price = price, reversalAmount=reversalAmount)) then 1 else 0;
rec trend = if inflection==1 and mode ==-1 then 1 else if inflection==1 and mode==1 then -1 else trend[1];

rec upWaveVolume = if inflection==1 and trend==1 and close>open then volume else if inflection==1 and trend==1 and close <= open then 0 else if trend==1 or (inflection==1 and trend ==-1 and close>=open) then upWaveVolume[1]+volume else 0;
rec downWaveVolume = if inflection==1 and trend ==-1 and close<open then volume else if inflection==1 and trend ==-1 and close>=open then 0 else if trend==-1 or (inflection==1 and trend==1 and close <= open) then downWaveVolume[1]+volume else 0;

plot upvol = upWaveVolume;
upvol.assignValueColor(color.green);
upvol.setPaintingStrategy(paintingStrategy.HISTOGRAM);
upvol.setLineWeight(2);

plot dnvol = downWaveVolume;
dnvol.assignValueColor( color.red);
dnvol.setPaintingStrategy(paintingStrategy.HISTOGRAM);
dnvol.setLineWeight(2);

plot zero = 0;
zero.setDefaultColor(color.white);
 

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