Heikin Ashi Doji Candle Scan

[stocksniper]

Does anybody know how to scan for Heikin Ashi Doji candles? Any help is greatly appreciated.

 

[mashume]

Not too sure on this one, since I don't follow candlestick patterns much, but if I read the docs correctly, this may work:

def c = OHLC4;
def o = (open[1] + close[1]) / 2;
# commented out to save calculations as these are part of the HA calculation, but not needed for this scan:
# def L = min(min(low, open), close);
# def h = max(max(high, open), close);

plot doji = if o == c then 1 else double.nan;

Of course, if I read them incorrectly, this may just be oh so much non-working code (and I haven't typed it in the ToS editor, so there may be some typos). I

-mashume

 

[stocksniper]

@mashume
For some reason it works on everything but the daily candles, could you look into it if you have a chance. Thanks in advance

 

[mashume]

@stocksniper
By this do you mean that it doesn't return anything at all but you know that there were doji daily candles? This scan requires OPEN to be exactly the same as CLOSE. You could re-write it so that it gave +- 1/2 % if you liked:

plot doji = if c >= (o - 0.005 * o) and c <= (o + 0.005 * o) then 1 else double.nan;

but other than no exact matches, I can't think of a reason this wouldn't work on daily charts.

-mashume

 

[stocksniper]

Ok, yea sometimes is not a perfect doji for example $TSLA had one on Friday on daily and a few others and it did not pick them up.

 

[sunnysetgo]

Hey guys,

Still having trouble with this code. Seems to plot using regular candles instead of heiken ashi candles.

 

[mashume]

Hey guys,

Still having trouble with this code. Seems to plot using regular candles instead of heiken ashi candles.

It is a scan, not a plot intended to use on a chart. Changing the type of candle for your plot is done through the chart settings, not this code.
-mashume

 

[sunnysetgo]

It is a scan, not a plot intended to use on a chart. Changing the type of candle for your plot is done through the chart settings, not this code.
-mashume

You are right, Mashume. I am hoping to use a similar code like the following to identify Doji candles using Heiken Ashi in TOS. Unfortunately this code doesn't work in TOS but only tradingview.

 

[mashume]

@sunnysetgo
Take a look at this thread:
https://usethinkscript.com/threads/...chart-on-your-main-chart-in-thinkorswim.9432/
Perhaps you can set your chart to be heikin ashi and run this script to overlay a regular bar chart on top of the HA generated by the chart settings.

-mashume

 

[sunnysetgo]

It won't help if I am looking for a HA doji and getting a regular bar chart doji. Thanks for trying.

 

[mashume]

It won't help if I am looking for a HA doji and getting a regular bar chart doji. Thanks for trying.

There are several threads around that make use of the AddChart() function, though it is not officially supported (read: it may disappear at any time). You can use the values from this study and that function to add HA candles on another chart:

def c = OHLC4;
def o = (open[1] + close[1]) / 2;
def L = min(min(low, open), close);
def h = max(max(high, open), close);
AddChart( high  = h,
          low = L,
          open = o,
          close = c,
          type  = iChartType.BAR;,
          growColor = color.gray,
          fallColor = color.gray,
          neutralColor  = color.gray
        );
[/cpde]
not that the candle colours don't actually work. You get one colour and that's it.

-mashume

 

[Daybuck]

This was taken from another site but it comes pretty close to scanning for HA Doji:

def haclose = (open + high + low + close) / 4;
def haopen = compoundValue(1, (haopen[1] + haclose[1]) / 2, (open[1] + close[1]) / 2);

plot HAdoji = HAclose >= 0.99 * HAopen AND HAclose <= 1.01 * HAopen;

 

[Cheeter]

Thank you for this.