Non-Complex HighestAll() Alternative?

[Quant1]

Having some difficulty here- I've been trying to get around usage of the HighestAll function to determine the last bar on a given chart frame, however, this is quite baffling. Here's the simple call with HighestAll():

def lastBar = HighestAll(BarNumber());

Little baffled by the need to use the call to HighestAll(); if I manually enter an integer into lastBar (that is, in fact, the last bar on the chart), function works as expected. Any other attempts I have tried to get around usage of HighestAll() without manually updating do not work. Just using BarNumber() (which should give just the last bar in the chart anyway???) also does not work. Feel like there is a class mismatch here that isn't really present in the description of each of these functions.

For example, the alternative:

def bar = !IsNaN(close[-1]);
rec bars = if bar then bars[1]+1 else bars[1];
def lastBar = bars;

When plotted against HighestAll(BarNumber()) is functionally equivalent... Yet when used with, say, Robert Payne's Quadratic Polynomial script, does not yield the same result (?).

As above, I feel like this is a noob mistake, or that I'm missing something. Anything here is appreciated!

 

[halcyonguy]

Having some difficulty here- I've been trying to get around usage of the HighestAll function to determine the last bar on a given chart frame, however, this is quite baffling. Here's the simple call with HighestAll():

def lastBar = HighestAll(BarNumber());

Little baffled by the need to use the call to HighestAll(); if I manually enter an integer into lastBar (that is, in fact, the last bar on the chart), function works as expected. Any other attempts I have tried to get around usage of HighestAll() without manually updating do not work. Just using BarNumber() (which should give just the last bar in the chart anyway???) also does not work. Feel like there is a class mismatch here that isn't really present in the description of each of these functions.

For example, the alternative:

def bar = !IsNaN(close[-1]);
rec bars = if bar then bars[1]+1 else bars[1];
def lastBar = bars;

When plotted against HighestAll(BarNumber()) is functionally equivalent... Yet when used with, say, Robert Payne's Quadratic Polynomial script, does not yield the same result (?).

As above, I feel like this is a noob mistake, or that I'm missing something. Anything here is appreciated!

all the candles are regularly redrawn on the chart. during this time, every candle will be 'the highest numbered bar' for a split second. this results in what you are seeing.

there is a way to use a large negative offset and a couple formulas, to find stats on the last candle ( like barnumber). look at the posts in this thread.
https://usethinkscript.com/threads/current-price-line-indicator-for-thinkorswim.8793/

 

[halcyonguy]

Having some difficulty here- I've been trying to get around usage of the HighestAll function to determine the last bar on a given chart frame, however, this is quite baffling. Here's the simple call with HighestAll():

def lastBar = HighestAll(BarNumber());

Little baffled by the need to use the call to HighestAll(); if I manually enter an integer into lastBar (that is, in fact, the last bar on the chart), function works as expected. Any other attempts I have tried to get around usage of HighestAll() without manually updating do not work. Just using BarNumber() (which should give just the last bar in the chart anyway???) also does not work. Feel like there is a class mismatch here that isn't really present in the description of each of these functions.

For example, the alternative:

def bar = !IsNaN(close[-1]);
rec bars = if bar then bars[1]+1 else bars[1];
def lastBar = bars;

When plotted against HighestAll(BarNumber()) is functionally equivalent... Yet when used with, say, Robert Payne's Quadratic Polynomial script, does not yield the same result (?).

As above, I feel like this is a noob mistake, or that I'm missing something. Anything here is appreciated!

here is a code using a big negative offset, to find the last barnumber

2nd half shows that a loop doesn't work

# alt_barnum_lastbar2

# find the last barnumber

#  modified version of
#  Line At Price
#  Mobius
#  Alternative to using the HighestAll() function
# https://usethinkscript.com/threads/current-price-line-indicator-for-thinkorswim.8793/

def bn = barnumber();
def na = double.nan;

#def lox = if !isnan(close) then low else if isnan(close) then lox[1] else low[1];
def lox = if !isnan(close) then low else lox[1];

input barsBack = 1000;

def lastbn1 = if !IsNaN(close) and IsNaN(close[-1])
    then barnumber()
    else lastbn1[1];

def lastbn2 = if isNaN(close[-barsBack])
    then lastbn1[-barsBack]
    else Double.NaN;


input test1 = yes;
addchartbubble(test1, lox,
"offset\n" +
bn + "  bn\n" +
lastbn1 + "\n" +
lastbn2 + "\n" 
,color.yellow, no);

addlabel(1, "last bar# " + lastbn2, color.yellow);


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

# example to show that using a loop, doesn't work.
#  on every bar, it thinks it is the last bar.
def last;
if bn == 1 then {
  last = fold i = 1 to bn
  with p
  do if getvalue(bn, -i ) > p then getvalue(bn, -i ) else p;
} else {
  last = last[1];
};

input test_loop = yes;
addchartbubble(test_loop, lox,
 "loop\n" +
 bn + "\n" +
 last
, color.cyan, no);
#

 

[Quant1]

@halcyonguy this is excellent, thank you! Works perfectly very, very much appreciate your help on this nagging issue.