Code for basic Linnear Regression Line

• 09/25/2017 at 9:21 AM #47181
  margincallcat

  Hi!

   

  Does anyone have the basic default code for creating the Linnear Regression Line the way its drawn by default in PRT? Also if one knows the containing codes for the RAFF and Standard Error lines that are drawn by PRT Defaults.

  I have managed to get the second point x and y axis as it is the last bar of (n) periods linnear regression – but i dont know how to find the first x and y axis.

  I am aware of this indicator: https://www.prorealcode.com/prorealtime-indicators/triple-raff-channel-projection-on-price/ but it does not contain the specific code i am looking for and does not help with my idea.

  So if anyone knows the code for the linnear regression line it would be greatly appreciated!

   

  //Viktor

  

  margincallcat

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  09/25/2017 at 9:48 AM #47196
  Nicolas

  You can find everything needed and a full example on how to draw a line from linear regression coordinates, in this indicator: https://www.prorealcode.com/prorealtime-indicators/regression-channel-sketcher/

   

  

  Nicolas

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  09/25/2017 at 10:13 AM #47212
  margincallcat

  I have read that one but several times but still dont get it.

  Is

  y1 = 1.5*std[p](high)+z1

  1	y1 = 1.5*std[p](high)+z1

  the basics for finding coordinates? In this case high. Is it always 1.5 times the standard deviation of (n)?

  Also it does not explain calculation for Raff and Standard error.

   

  As you can guess i lack some mathematical skillz, but learn quick so im just trying to understand the logic.

   

  Thanks for your patience and understanding.

  

  margincallcat

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  09/25/2017 at 10:35 AM #47222
  margincallcat

  I have now once again used the specific code you forwarded (but using (close) and only 1 line) – and it does not translate into the same result as just drawing a Linnear Regression Line over said period.

  Im really confused

  

  margincallcat

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  09/25/2017 at 4:24 PM #47290
  Nicolas

  Another example:

  defparam drawonlastbaronly=true p=62 z1 = linearregression[p] DRAWSEGMENT(barindex-p,z1[p],barindex,z1) RETURN

  1 2 3 4 5 6 7 8 9 10

  defparam drawonlastbaronly=true   p=62   z1 = linearregression[p]   DRAWSEGMENT(barindex-p,z1[p],barindex,z1)     RETURN

  In the attached screenshot, you have the automatic trendline plotted by the platform (violet one) and the one from the code (the black one). Because I took the Close for the linearregression indicator, there is a little difference with the two points I chose to draw the linear regression line, but that’s how it goes.

  

  Nicolas

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  09/25/2017 at 6:40 PM #47296
  margincallcat

  Thank you for your answer!

  However, it still does not translate to a correctly drawn linear regression line like the one drawn by default. Please see attached picture. Maybe i am doing something wrong?

  Red Line = Default Linear Regression Line, 62 bars

  White = Line from this code:

  defparam drawonlastbaronly=true p=62 z1 = linearregression[p] DRAWSEGMENT(barindex-p,z1[p],barindex,z1) RETURN

  1 2 3 4 5 6 7 8 9 10

  defparam drawonlastbaronly=true p=62 z1 = linearregression[p] DRAWSEGMENT(barindex-p,z1[p],barindex,z1) RETURN

  As you can see its way off. If i just want to make a line exactly like the one the program draws for me – what should i write?

  Would greatly appreciate a solution!

   

  Thanks!

  Viktor

   

  Edit: The X1 axis is correct but the Y1 (in this case z1[p]) give the wrong coordinate

  

  margincallcat

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  09/28/2017 at 7:00 PM #47717
  margincallcat

  Is there no one that has the code to copy the linear regression line drawn by PRT?

  

  margincallcat

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  10/11/2017 at 9:30 AM #49014
  margincallcat

  I am still looking for the answer to this. If anyone knows it would be appreciated.

  

  margincallcat

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  01/12/2018 at 5:31 PM #59229
  Nobody

  BUMP would be fantastic to have access to the source code for PRT builtin indicators

  

  Nobody

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  01/12/2018 at 6:26 PM #59242
  robertogozzi

  PRT software is proprietary much like Windows or MacOS and it is (and is likely not to ever be) open to the public.

  

  robertogozzi

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  01/12/2018 at 9:37 PM #59304
  Nobody

  I hardly want the software operating system , just the way an indicator coded . Such as linear regression  .  I dont think its a huge ask

  1 user thanked author for this post.

  Bel

  

  Nobody

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