Bollinger Screener Bug

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  • #188657 quote
    Keyeming
    Participant
    Junior

    Hello Nicolas,

     

    Why does this screener does bring back any result  ?

    ecartbol = Bollingerup[60](close)-Bollingerdown[60](close)
    SCREENER[ecartbol < average[200](ecartbol)]

    Thank you for your feedback

    WeChat-Screenshot_20220222212610.png WeChat-Screenshot_20220222212610.png
    #188662 quote
    robertogozzi
    Moderator
    Master

    Because SCREENERS with IG have a 254-bar data history limit (1024 with PRT direct).

    You are using a 200 + 60  = 260 periods. Try using 50 periods for BB.

    You can still use 200 periods with SMA. Should you want to use an EMA, then you could barely use 80 periods for the average, since EMAs require many more bars to be calculated.

    Keyeming thanked this post
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Bollinger Screener Bug


ProScreener: Market Scanners & Detection

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Keyeming @keyeming Participant
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This topic contains 1 reply,
has 2 voices, and was last updated by robertogozzi
4 years ago.

Topic Details
Forum: ProScreener: Market Scanners & Detection
Language: English
Started: 02/22/2022
Status: Active
Attachments: 1 files
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