Label candles with consecutive high or low

[IB78]

New to this forum. Also has no coding experience. I want to label/draw line between consecutive candle bars (HA candle) that has same high or low. I got this part of this code from post on this forum together with the learning center. But the code only label a small percentage of those bars. Those bars with same high/low that were not identified by the code were marked with arrow below or under. These were identified based on the high/low readings on the chart up to 2 decimal points. Please see attached screenshot. Below is the code, could someone kindly help me to troubleshoot this?

plot LowestClose = if Round(low[1]) == Round(low) then round(low) else double.NaN;
plot HighestClose = if Round(high[1]) == Round(high) then round(high) else double.NaN;

 

[halcyonguy]

New to this forum. Also has no coding experience. I want to label/draw line between consecutive candle bars (HA candle) that has same high or low. I got this part of this code from post on this forum together with the learning center. But the code only label a small percentage of those bars. Those bars with same high/low that were not identified by the code were marked with arrow below or under. These were identified based on the high/low readings on the chart up to 2 decimal points. Please see attached screenshot. Below is the code, could someone kindly help me to troubleshoot this?


plot LowestClose = if Round(low[1]) == Round(low) then round(low) else double.NaN;
plot HighestClose = if Round(high[1]) == Round(high) then round(high) else double.NaN;

maybe this test program will help show what is happening.
it looks for 2 price levels that are within some amount ( default is 0.01 )

your condition is comparing the current bar to a the previous bar. so the 1st bar in a same price series won't be found.
need to add a check to see if it is the first bar and if the next bar is true.

i didn't try this on HA bars, but the principle is the same.

# within_x_price_0

# to start a line from a bar, it needs a true condition.
# include a line segment before the first condition bar, need to check a condition on the next bar.
#  if (isnan(HighestClose[1]) and absvalue( high[-1] - high[0] ) < within_price )

input within_price = 0.01;

#plot LowestClose = if Round(low[1]) == Round(low) then round(low) else double.NaN;
#plot HighestClose = if Round(high[1]) == Round(high) then round(high) else double.NaN;

def HighestClose = if (isnan(HighestClose[1]) and absvalue( high[-1] - high[0] ) < within_price ) or  absvalue( high[0] - high[1] ) < within_price then high else double.NaN;

def LowestClose =  if (isnan(lowestclose[1]) and absvalue( low[-1] - low[0] ) < within_price ) or absvalue( low[0] - low[1] ) < within_price then low else double.NaN;


plot zh = HighestClose;
plot zl = LowestClose;
zh.setdefaultcolor(color.white);
zl.setdefaultcolor(color.white);

#--------------------------
input test_vertical_lines = no;
addverticalline(test_vertical_lines and !isnan(HighestClose), "-", color.green);
addverticalline(test_vertical_lines and !isnan(lowestClose), "-", color.red);
#