Solution for Screener without result

• 03/10/2022 at 10:40 AM #189738
  ZeroCafeine

  Hi All,

  I’m trying to develop a screener but I’m facing a small problem that here,

  As I’m not expert in Probuilder coding (I’m learning), I try to create an indicator that I transform into a screener and vice-versa, is there any other solution please ?

  Best Regards,

  

  ZeroCafeine

  Participant

  Topics: 115

  Replies: 477

  Been thanked: 43 times
  03/10/2022 at 12:36 PM #189740
  robertogozzi

  Screeners are much the same as indicators, with just a few exceptions:

  • do not support graphics
  • do not return any data, they simply highlight the instruments that meet the conditions
  • have a data history of just 254 bars, with IG (PRT offer 1024 bars, though).

  That said, this indicator:

  Sma100 = average[100,0](close) Signal = 0 IF close CROSSES OVER Sma100 THEN Signal = 1 ELSIF close CROSSES UNDER Sma100 THEN Signal = -1 ENDIF RETURN Signal AS "Crossover"

  1 2 3 4 5 6 7 8

  Sma100 = average[100,0](close) Signal = 0 IF close CROSSES OVER Sma100 THEN    Signal = 1 ELSIF close CROSSES UNDER Sma100 THEN    Signal = -1 ENDIF RETURN Signal AS "Crossover"

  can be easily converted into a screener by simply:

  • replacing the last line with the keyword SCREENER (and optionally adding the CRITERION)
  • replacing -1 with 2 or any positive value of your choice to tell long from short signals

  Sma100 = average[100,0](close) Signal = 0 IF close CROSSES OVER Sma100 THEN Signal = 1 ELSIF close CROSSES UNDER Sma100 THEN Signal = 2 ENDIF SCREENER[Signal](Signal AS "1=long, 2=short")

  1 2 3 4 5 6 7 8

  Sma100 = average[100,0](close) Signal = 0 IF close CROSSES OVER Sma100 THEN    Signal = 1 ELSIF close CROSSES UNDER Sma100 THEN    Signal = 2 ENDIF SCREENER[Signal](Signal AS "1=long, 2=short")

   

  1 user thanked author for this post.

  ZeroCafeine

  

  robertogozzi

  Moderator

  Topics: 69

  Replies: 17275

  Been thanked: 4124 times
  03/10/2022 at 1:37 PM #189749
  ZeroCafeine

  tks for your answer, I will try and come back if I don’t undertsnad the idea or if have some problem,

  robertogozzi wrote:

  have a data history of just 254 bars, with IG (PRT offer 1024 bars, though).

  with this answer you helped me for my future question (you are in my head 🙂 ), the 254 it’s for all TF ?
  and PRT from IG it’s 1024, that is nice but they block some history too short on some TF, but it’s also a good information tks you,

  and last think but not least, the screener strat working from the last 254 (Barindex of now –  254) but how about the indicator if they use moree then 254 period in the begining for exemple in the Candle[254] ?

  

  ZeroCafeine

  Participant

  Topics: 115

  Replies: 477

  Been thanked: 43 times
  03/10/2022 at 3:19 PM #189765
  robertogozzi

  IG only supports 254 bars, for all TFs, that is 254 minutes, hours, days, and so on…

  1024 are supported by PRT from their own website, not with IG.

  If any indicator needs more than 254 bars, then it will return incorrect data.

  Be warned that some indicators need many more bars than the periods in brackets. EMAs can have, at most, about 70-80 periods, because of their inner calculations.

   

  1 user thanked author for this post.

  ZeroCafeine

  

  robertogozzi

  Moderator

  Topics: 69

  Replies: 17275

  Been thanked: 4124 times
• Author
  Posts