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  • PriceSource parameter

    The constructors for JMA, RSX and VEL all contain a PriceSource parameter. You set it to a string like "close" to base the JMA on the closing price of a bar.

    How do you base one of these studies on a value other than OHLC? I want to compute values myself and smooth them with JMA and possibly VEL. For example, I want to smooth the difference of the logs of the last two closes:
    (Math.log(close() - Math.log(close(-1))

    When I try to pass an expression other than "open", "high", etc for the PriceSource Parameter, I get a "parameter 4 invalid" error.

    Tech support at jurik says that this is a limitation of the esignal platform.

    How do I go about smoothing data other than price bar variables?

    Tim Johnston

  • #2
    Hi Tim,

    Currently it's only possible to compute on O,H,L, & C. To make a change to that would be extensive and due to a lack of demand, it's not currently on our radar to do.

    We appreciate your feedback on this and should the demand ever come about for this, we'll certainly review it further.

    Thanks,
    Andy

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    • #3
      Actually, we are working on a macro-like alternative to EFS which will support what you are attempting to do. There is no timeline available for this yet, but we are currently aiming for v8.0.

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      • #4
        Jurik Research has already developed a real-time programming enhancement to the EFS environment. With it, you can code with almost the same formula complexity as with TradeStation Easy Language. It is called RTE (real-time enhancement) and you can get more information on RTE at Jurik's user group at ...



        and



        I am now trying to find time to create a user's manual, so that beta testers have something to work with. After testing is completed, RTE will be released.

        - Mark Jurik

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