Storing 'Bars Since' a Condition from ZigZag

• 06/06/2020 at 7:38 PM #134919
  scoot3r83

  Hello,

  I am new to PRT and coming from a Metastock background. I am trying to store the number of bars since a set of criteria into a variable for later use in my code but cannot find how to correctly do this. The code I have is below, any help will be appreciated.

  ZZ = ZigZag[17](close) If ZZ < ZZ[1] AND ZZ[1] > ZZ[2] then CrossingPosition = Barindex Endif X = Barindex - CrossingPosition

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  ZZ = ZigZag[17](close) If ZZ < ZZ[1] AND ZZ[1] > ZZ[2] then CrossingPosition = Barindex Endif X = Barindex - CrossingPosition

  I am unsure but believe the first line saves the zigzag values as an array and within the if statement am trying to reference to those array elements.

  

  scoot3r83

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  06/06/2020 at 10:20 PM #134934
  Vonasi

  Your code does not use arrays. Arrays are only available in PRT v11. Your code simply stores the last barindex value when the event occurred.

  In v11 using arrays the code would be:

  x = 10 ZZ = ZigZag[17](close) If ZZ < ZZ[1] AND ZZ[1] > ZZ[2] then $CrossingPosition[a] = Barindex a = a + 1 Endif c = LastSet[$CrossingPosition] mycrossingindex= $CrossingPosition[c-x]

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  x = 10   ZZ = ZigZag[17](close) If ZZ < ZZ[1] AND ZZ[1] > ZZ[2] then $CrossingPosition[a] = Barindex a = a + 1 Endif   c = LastSet[$CrossingPosition]   mycrossingindex= $CrossingPosition[c-x]

  ‘mycrossingindex’ would then return the barindex of the zigzag peak 10 zigzag peaks back in this example.

  Not tested.

  

  Vonasi

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  06/07/2020 at 7:38 AM #134942
  scoot3r83

  Thank you for the reply. I do not have V11, I believe I use V10.3.

  In V10.3, what would be the method to access the peaks and troughs of the zigzag function?

  

  scoot3r83

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  06/07/2020 at 8:13 AM #134947
  Vonasi

  v10.3 does not have arrays. Store them in different variable names and drop the oldest when you get a new one. Obviously you are limited to how much repetitive typing you are willing to do!

  I assume that you are aware that the ZigZag indicator redraws and so you will be storing many changes in direction that will later no longer exist?

  Are you coding this for a screener? If not then you have posted it in the wrong forum.

  ZZ = ZigZag[17](close) If ZZ < ZZ[1] AND ZZ[1] > ZZ[2] then a3 = a2 a2 = a1 a1 = a a = Barindex Endif X = Barindex - a3

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  ZZ = ZigZag[17](close) If ZZ < ZZ[1] AND ZZ[1] > ZZ[2] then a3 = a2 a2 = a1 a1 = a a = Barindex Endif X = Barindex - a3

   

  

  Vonasi

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  06/07/2020 at 8:24 AM #134948
  scoot3r83

  Hi,

  Thanks again for the reply, I see what you mean about storing each variable, I can do that as I won’t need to store too many occurrences but believe the ZigZag function works from the most recent bar and then proceeds to the left of the chart.

  Yes I am using this code as a screener, apologies for posting this in the incorrect forum, I am new to this site as of yesterday so a bit unfamiliar with it. I will see if I can have my post relocated to the correct forum.

  

  scoot3r83

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  06/07/2020 at 9:45 AM #134957
  Vonasi

  scoot3r83 wrote:

  Yes I am using this code as a screener, apologies for posting this in the incorrect forum, I am new to this site as of yesterday so a bit unfamiliar with it. I will see if I can have my post relocated to the correct forum.

  You posted it in the correct forum. I just felt the need to ask as it is so rare these days for a newbie forum member to actually do that!

  Because the ZigZag repaints you can have a change of direction at the close of the latest bar that the bar after that disappears so you will have stored the position of a change of direction that no longer exists. It is why indicators like the ZigZag look so good – they change their mind once they have seen what happens in the future.

  

  Vonasi

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