Heikin Ashi

[NateB9916]

Is there any way to make heikin ashi charts consider after hours data without it being displayed? I hate that there are a string of long candles when there is a large gap overnight.

 

[SleepyZ]

Is there any way to make heikin ashi charts consider after hours data without it being displayed? I hate that there are a string of long candles when there is a large gap overnight.

Mod note: see next post

 

[SleepyZ]

To consider the after hour data, it must be on the chart. However, there is a workaround to hide the after hours bars by using the addchart function. Add the code below to hide the price plot and substitute the addchart workaround.

The image shows the workaround in the upper chart without after hours data and the lower chart with the workaround, which shows after hours.

Sorry, the above solution did not work as it made the after hours data unusable by hiding the price plot.

So you can try this instead. First go to chart settings and Uncheck Highlight Extended-Hours

Then add the following code which will hide the after hours bars

def rth = between(gettime(), regularTradingStart(getyyyYMMDD()),
                             regularTradingEnd(getyyyYMMDD()));
AssignPriceColor(if !rth then Color.BLACK else Color.CURRENT);

 

[NateB9916]

Sorry, the above solution did not work as it made the after hours data unusable by hiding the price plot.

So you can try this instead. First go to chart settings and Uncheck Highlight Extended-Hours

Do you know of anyway to cutout the void that leaves behind? I feel like it will mess up my keltner bands that don't need the after-hours data. Thanks for all your help!

 

[SleepyZ]

Do you know of anyway to cutout the void that leaves behind? I feel like it will mess up my keltner bands that don't need the after-hours data. Thanks for all your help!

No, but if you use the solution in post #3, then it should not affect your indicators. See images without and with bars showing in after hours.

 

[NateB9916]

No, but if you use the solution in post #3, then it should not affect your indicators. See images without and with bars showing in after hours.

That looks like the indicator is using the afterhours data though, I need mine not to use it. It seems the easiest solution would be to somehow change the heikin ashi to where it uses the first normal candle of the day to initialize the trend, avoiding a large gap. Just don't know if that's possible.

 

[SleepyZ]

That looks like the indicator is using the afterhours data though, I need mine not to use it. It seems the easiest solution would be to somehow change the heikin ashi to where it uses the first normal candle of the day to initialize the trend, avoiding a large gap. Just don't know if that's possible.

Your first post indicated that you "to consider after hours data" and your subsequent post indicated that you "don't need after hours data." Please explain what you need the after hours data to do and how you currently are able to have after hours data, but not for the Keltner Channel indicator, all on one chart with after hours data.

If you do not need after hours data at all, then just refer to post #3 above and uncheck "Show Extended-hours" above the cyan colored circled check box.

 

[NateB9916]

Sorry, I should have put photo's in my original post to help explain what I meant. All I'm trying to do is get rid of the long candles on heikin-ashi when a stock gaps up or down.

 

[SleepyZ]

Sorry, I should have put photo's in my original post to help explain what I meant. All I'm trying to do is get rid of the long candles on heikin-ashi when a stock gaps up or down.

Thank you, now I see what you wanted. The following seems to work. It assigns a black price color to the heiken ashi 0930 bar and replaces it with a hybred heiken ashi bar, which appears to expose the gaps in my testing. It does not appear to affect the Keltner Channel as seen in the image below.

input charttype=chartType.CANDLE;
def o = open;
def h = high;
def l = low;
def c = close;
def HAclose = (o+h+l+c)/4;
def HAopen  = CompoundValue(1, (HAopen[1] + HAclose[1]) / 2, (o[1] + c[1]) / 2);
def haopen_ = if haopen>haclose
              then HAopen + 0
              else double.nan;
def HAhigh  = if haopen_>=haclose
              then Max(Max(h, HAopen_), HAclose)
              else double.nan;
def HAlow   = if haopen>=haclose
              then Min(Min(l, HAopen_), HAclose)
              else double.nan;
def bar = secondsfromTime(0930) == 0;

def o1 = if bar and haopen<haclose then l else double.nan;
def c1 = if bar and haopen<haclose then o else double.nan;
def h1 = if bar and haopen<haclose then h else double.nan;
def l1 = if bar and haopen<haclose then l else double.nan;

AddChart(growColor = color.green, fallColor = color.red, neutralColor = color.gray, high = h1, low = l1, open = c1, close = o1, type = chartType);

def o2 = if bar and haopen >=haclose then h else double.nan;
def h2 = if bar and haopen >=haclose then h else double.nan;
def l2 = if bar and haopen >=haclose then halow else double.nan;
def c2 = if bar and haopen >=haclose then haclose else double.nan;
AddChart(growColor = color.red, fallColor = color.green, neutralColor = color.gray, high = h2, low = l2, open = o2, close = c2, type = chartType);


assignpriceColor(if bar then color.black else color.current);