EMA has a different internal value than the chart

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  • #165522 quote
    qigleyqigley
    Participant
    Junior
    SCREENER[ close = 9.65] ( exponentialaverage[200](close) as "EMA 200" )

    Hi All,

    Executing the above screener, why does the chart  display a different value for the EMA 200 than what Proscreener returns in its results list?

    Chart says 9.4383,  Procscreener result says 9.111 .

    Thanks

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    #165529 quote
    robertogozzirobertogozzi
    Moderator
    Legend

    ProScreener has a 254-bar limit.

    Exponential averages need more than the bars within brackets to calculate correctly. Use less period (maybe 100 or even less periods), or, even better, use a Simple Moving Average.

    qigley thanked this post
    #165531 quote
    qigleyqigley
    Participant
    Junior

    Hi Roberto,

    I  tried the SMA, and now the values align.

    SCREENER[ close = 9.65] ( average[200](close) as "EMA 200" )

    However I dont quite understand your answer when you say “Exponential averages need more than the bars within brackets to calculate correctly.” can you elaborate?

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    #165539 quote
    robertogozzirobertogozzi
    Moderator
    Legend

    The formula to calculate the exponential average for N periods requires about twice that number of bars.

    qigley thanked this post
    38857713-00CF-497D-B0EE-29917835BE5C.jpeg 38857713-00CF-497D-B0EE-29917835BE5C.jpeg
    #165548 quote
    qigleyqigley
    Participant
    Junior

    Thats very worthwhile information. to know Thanks.

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EMA has a different internal value than the chart


ProScreener: Market Scanners & Detection

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qigley @qigley Participant
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This topic contains 4 replies,
has 2 voices, and was last updated by qigleyqigley
5 years, 5 months ago.

Topic Details
Forum: ProScreener: Market Scanners & Detection
Language: English
Started: 03/28/2021
Status: Active
Attachments: 4 files
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