Make volume profile plot in lower study section identical to how it plots on 10m price candle chart?


Active member
Hello everyone, I had been looking for a way to access the volume profile point of control on a lower study without causing scaling problems, and this was finally solved by re-scaling the other plots to the range of the price chart (solution was shared here) in a way that still preserved the original shape of histograms that have negative values, and thus allowed them to continue plotting normally.

However, now that I can use the volume profile in the lower study section without creating scaling problems, there is a different problem: I want the volume profile to act the same in the lower study section as it does when it appears on a 10M price candle chart, but it doesn't work. The point of control lines don't match the lines on the upper price chart area. I think it might be due to the input parameters of the volume profile needing to be modified in the script to replicate the environment or inputs of the 10M price candle chart. Does anyone have an idea of how to do this?

# NextSignals volume profile with POC and POC extensions

def zero = 0;

#addlabel(yes," POC ",createcolor(100,0,255));

input pricePerRowHeightMode = {default TICKSIZE, AUTOMATIC};
input timePerProfile = {default Bar, CHART};
def onExpansion = no;
def period;
switch (timePerProfile) {
case CHART:
period = 0;
case Bar:
period = BarNumber() - 1;}
rec count = if period != period[1] then (count[1] + period - period[1]) % 20 else count[1];
def cond = count < count[1] + period - period[1];
def height;
switch (pricePerRowHeightMode) {
height = PricePerRow.AUTOMATIC;
height = PricePerRow.TICKSIZE;}
profile vol = VolumeProfile("startNewProfile" = cond, "onExpansion" = onExpansion, "numberOfProfiles" = 1000, "pricePerRow" = height, "value area percent" = 68);
def con = CompoundValue(1, onExpansion, no);
def pc = if IsNaN(vol.GetPointOfControl()) and con then pc[1] else vol.GetPointOfControl();
def plotsDomain = IsNaN(close) == onExpansion;

plot POC = if plotsDomain then pc else Double.NaN;

profile tpo = timeProfile("startNewProfile" = cond, "onExpansion" = onExpansion, "numberOfProfiles" = 1000, "pricePerRow" = height, "value area percent" = 68);
def tpoPC = if IsNaN(tpo.getPointOfControl()) and con then tpoPC[1] else tpo.getPointOfControl();
plot tpoPOC = if plotsDomain then tpoPC else Double.NaN;

### POC extensions

def y= if !IsNaN(pc) then pc else y[1];
plot vpocext = y[20];

def x = if !IsNaN(tpoPC) then tpopc else x[1];
plot tpoext = x[20];

It's not clear to me how the input parameters would need to be modified or whether that can fix the issue and thereby cause the profile to appear the same way as it does on the upper price chart. If anyone has any ideas, I would be grateful for your help.

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