Parabolic SAR Expert Advisor
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Thread: Parabolic SAR Expert Advisor

  1. #1
    Hi guys,

    I have been trying to make an expert advisor based on parabolic sar indiors, but been having trouble in trying to make it function correctly, it'll either enter depart too late or too soon. My thought would be to have action to it at the scatter of a parabolic curve.
    Can anyone shed some light on this? Or if anyone knows any EA that uses parabolic sar inside please let me know.

    Thank you a lot.

  2. #2
    Parabolic SAR is not intended to function as a standalone entry indior. My experience is that it is helpful in identifying exit points but not so helpful with entries.

    Lots of individuals think of things I don't, perhaps you'll find a way to make it useful on entries.

  3. #3
    Quote Originally Posted by ;
    Parabolic SAR is not intended to function as a stand-alone entry indior. My experience is that it's useful in identifying exit factors but not so useful with entrances.

    Lots of people consider things I don't, perhaps you'll discover a way to make it useful on entrances.
    YesI agreeI wouldn't use just the parabolic sar to determine entry and exit.
    But my problem is that how to utilize parabolic sar in an expert advisor, since in accordance with my experience if I allow the EA do automatic trading it retains taking action at the incorrect time, example:
    I instruct the EA to shut trade at the first dot of parabolic sar change i.e; parabolic sar changes position in below price to above price and vice versa, but the outcome is that the EA sometimes exit the transaction even without sar changing position or exiting after a few dots of position shift.

    Does anybody have experience of writing an EA using parabolic sar as indior?
    thanks.

  4. #4
    Since the parabolic change up or down depending on candle high/low vs preceding SAR worth...
    You shouldn't use the current price but the previous value:
    - Buffer[1] instead of buffer[0];
    The previous value is a fixed one(Like additional indiors)

    So at a new candle (Open) you check if the previous dot is the very first among the new arrangement...

    Thats the simplest way to do it...

    Ex: Close if candle reach final value(Buffer[1]), input after initial dot(Open of the second candle).

  5. #5
    @zauzere

    Thank you for the advice, will try to recreate my EA, though am not very sure since I think I have tried this earlier.

    Cheers.

  6. #6
    Quote Originally Posted by ;
    Parabolic SAR isn't meant to act as a stand-alone entry indior. My experience is that it's useful in identifying exit factors but not useful with entries.

    Lots of individuals consider things I do not, maybe you'll discover a way to make it useful on entries.
    Really? Did you ask J. Welles Wilder about that since he did explained it as a system in his book. SAR stands for reverse and prevent. That sounds for me personally like an entrance system.

  7. #7
    Quote Originally Posted by ;
    Really? Can you ask J. Welles Wilder about that because he did explain it as a method in his publication. SAR stands for undo and stop. That sounds like an entry system for me personally.
    Nope. Have not asked him.

    Like I said in my prior post, lots of people come up with great ideas that I do not. If you think Parabolic SAR can function as a standalone entry indior, I'd love to talk about it.

  8. #8
    Quote Originally Posted by ;
    Nope. Have not asked him.

    Like I said in my prior post, lots of individuals come up with great ideas that I do not. I would love to discuss it, if you think Parabolic SAR can work as a stand-alone entry indior.
    Well, folks typically pair the SAR with ADX to eliminate fake entrance and exit.
    I think Wilder also recommends it in his publication.

    Update about the EA thing.
    According to Zeuzere explanation, the EA operates properly by using prev period SAR, but entering the market one SAR dot too late frequently means a losing trade.
    Best to stick to SAR in manual trading.

  9. #9
    Quote Originally Posted by ;
    Update on the EA thing.
    According to explanation, the EA works correctly by utilizing prev interval SAR, but entering the market one SAR scatter too late often signifies a losing trade.
    Best to stick to SAR in guide trading.
    Sorry, no, no, I did not says that...

    I merely mentioned, should you use SAR and need to retreive info from it....
    Use Buffer[1] instead of Buffer[0]...
    The way you use SAR is left up to you ( I didn't speak about EA, just how to use it to have a fix value)...

    should you use Buffer[0], you have to be aware of how it functions (How it was created:Math stuff) then react while it happen...
    You must understand why SAR appear and disappear on precisely the exact same candle!
    __________________________________________________ _______

    Now I am likely to talk about EA ( However, its just an illustration )
    If you say after the first dot is to late...
    Ex.: Maybe you should place a Buystop (in case the trend is down) on the final dot(Buffer[1]):
    - lets says you use 15 minutes charts
    - You buy or place a buystop on the previous SAR value
    -- But only as long as the ADX hourly is Positive( 20) and the -DI is below DI

    But is just a thought: if the trend on the hourly rate is up but the short duration is down, then it is possible to look to go upward, once the SAR turn arround...

  10. #10
    Ummm... I believe I have made a wrong impression .

    Zeuzere I really appreciate your inputs on this, please don't be confused, my previous post was never meant as a rebuttal to your article. I am just giving an update on what has occurred after I recreate my EA.
    Apart, thanks to you, now I know how Parabolic SAR is being calculated by the system.

    The Buystop egy seems interesting, I'll look into it also.
    Thank you a lot for your advice Zeuzere.

    Cheers.

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