constant slope of an indicator

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  • 02/21/2021 at 2:18 PM #162190 quote
    gnellas77
    Participant
    Average

    hi there, i want to extend a previous question of mine,

    i want to screen stocks that their bollinger bandwidth indicator has a constant slope for the last 10 days lets say. Actually it would look like an almost straight horizontal line with small fluctuations. the following algorithm i received it is valid but returns the bollinger bandwidth indicator as an almost straight line but for some stocks it returns it with an upward slope:

    Periods = 10
Bol   = BollingerBandWidth[20](close)-BollingerBandWidth[20](close)[1]
Cond    = summation[Periods]((Bol >= 0) AND (Bol <= 0.01)) = Periods

SCREENER[Cond]

    in order to have an almost horizontal line of the bollinger bandwidth indicator for the last 10 days i thought to use the dy/dx formula that gives the slope of a line. for the y-values i use the bollinger bandwidth values and for the x-values i thought to use past days with the help of “day” or “days” command. Assuming that Bol is the dy how can i write the dx formula (in order for the Bol to be divided by 1, Bol[2] to be divided by 2 and so on…

    thank you.

    02/22/2021 at 9:41 AM #162310 quote
    Nicolas
    Keymaster
    Master

    a “flat” line is purely visual. In your indicator you are measuring the variation in points, which can be very different from an intrusment to another!

    You should use the BB% indicator which is the percentage of the price minus the lower band divived by the bands difference, so it is somehow ‘universal’ for all instruments.

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constant slope of an indicator


ProScreener: Market Scanners & Detection

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gnellas77 @gnellas77 Participant
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This topic contains 1 reply,
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5 years ago.

Topic Details
Forum: ProScreener: Market Scanners & Detection
Language: English
Started: 02/21/2021
Status: Active
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