Crosses over/under a line drawn by drawline or drawray

• 10/22/2022 at 9:16 AM #202915
  LucasBest

  Hello all,

  • Is there a way to know if an indicator/price crosses over/under a line drawn by drawline or drawray ?
  • Is there an other instruction than crosses over/under to test if an indicator/price close “next to” or on the line drawn by drawline or drawray ?

  Thanks

  

  LucasBest

  Participant

  Topics: 21

  Replies: 376

  Been thanked: 129 times
  10/22/2022 at 1:34 PM #202923
  robertogozzi

  No, there’s no instruction to detect a crossover with lines.

  You have to compute the price level on which the line is sitting candle by candle.

  Firstly, compute the price difference between the leftmost and the rightmost candle:

  StartBar = barindex[20] EndBar = barindex Bars = EndBar -StartBar EndPrice = Close Difference = (EndPrice - Close[20]) / Bars

  1 2 3 4 5

  StartBar   = barindex[20] EndBar     = barindex Bars       = EndBar -StartBar EndPrice   = Close Difference = (EndPrice - Close[20]) / Bars

  then add that difference each candle to know the current price level where the line is plotted. Next candle compute the new price level where the line is supposed to sit:

  EndPrice = EndPrice + Difference

  1	EndPrice   = EndPrice   + Difference

  Now you can compare the current price vs the supposed price to detect any crossover:

  If close crosses over EndPrice then // do whatever you want when a crossover is detected Endif

  1 2 3

  If close crosses over EndPrice then    // do whatever you want when a crossover is detected Endif

  if the difference is negative the direction continues downwards, otherwise it will continue upwards.

  Repeat the last process each bar.

  When you need to draw a new line elsewhere, repeat the whole process from start.

   

   

   

  1 user thanked author for this post.

  LucasBest

  

  robertogozzi

  Moderator

  Topics: 69

  Replies: 17523

  Been thanked: 4275 times
  10/22/2022 at 2:23 PM #202924
  LucasBest

  Thanks a lot for your answer Roberto.

  That’s what i though… The aim of this is to look for third of fourth contact on RSI divergences.

  To keep in an array the RSI Divergences and test other occurences, and delete divergences from the array as sson as there is a cross over…

   

  

  LucasBest

  Participant

  Topics: 21

  Replies: 376

  Been thanked: 129 times
  10/22/2022 at 2:57 PM #202926
  LucasBest

  In this case, there is 2 bearish divergences with 3 points

  

  LucasBest

  Participant

  Topics: 21

  Replies: 376

  Been thanked: 129 times
  10/22/2022 at 4:06 PM #202930
  robertogozzi

  That’s fine, you can replace CLOSE with anything else, be it HIGH, LOW, RSI or MACD etc…

   

  1 user thanked author for this post.

  LucasBest

  

  robertogozzi

  Moderator

  Topics: 69

  Replies: 17523

  Been thanked: 4275 times
• Author
  Posts