Long term/Short term MA trend screener error

• 10/29/2023 at 7:19 AM #223020
  langdon

  Hi, I am trying to setup a simple screener to identify stocks in both a ST and LT uptrend.

  It is pretty simple but I am getting results that are not correct. I have tried a number of variations of the code and the current one has the LT trend calculation as the screener. The screener (LT trend calc, which is the EMA144/EMA233) gives me a figure of greater than one but when I look at some of the results the EMA233 is clearly above the EMA144 which would result in a screener calcuation of less then 1 but that is not the result given.

  See attached eg for Alderan resources (AL8). Of the 43 results, at least 6 are incorrect.

   

   

  ST/LT MA trend

  REM Calculate a exp moving average over the last 21 days ema21 = ExponentialAverage[21](close) REM Calculate a exp moving average over the last 34 days ema34 = ExponentialAverage[34](close) REM Calculate a exp moving average over the last 144 days ema144 = ExponentialAverage[144](close) REM Calculate a exp moving average over the last 233 days ema233 = ExponentialAverage[233](close) LTtrend = ema144/ema233 STtrend = ema21/ema34 REM if both LT and ST trend is up IF LTtrend >1 then if STtrend >1 THEN SCREENER (LTtrend AS "Trend") endif ENDIF

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  REM Calculate a exp moving average over the last 21 days ema21 = ExponentialAverage[21](close)   REM Calculate a exp moving average over the last 34 days ema34 = ExponentialAverage[34](close)   REM Calculate a exp moving average over the last 144 days ema144 = ExponentialAverage[144](close)   REM Calculate a exp moving average over the last 233 days ema233 = ExponentialAverage[233](close)   LTtrend = ema144/ema233 STtrend = ema21/ema34   REM if both LT and ST trend is up IF LTtrend >1  then if STtrend >1 THEN SCREENER (LTtrend AS "Trend") endif ENDIF

  

  langdon

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  10/29/2023 at 9:38 AM #223022
  JS

  Hi @langdon

  ProScreener uses the last 256 bars (Premium 1024 bars) to make calculations, probably your EMA233 needs more history for a correct calculation…

  

  JS

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  10/29/2023 at 5:21 PM #223034
  robertogozzi

  Yes, as JS  said, EMAs require more than twice the periods written within brackets, thus exceeding the built-in limits.

   

  

  robertogozzi

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