Zigzag Code does not update automatically

• 06/21/2023 at 8:12 PM #216565
  GustavoL.O

  Hello,

  I need to fix a problem I have with this code. The cumulative Histogram does not update the zigzag, to update I have to reset the indicator on the Intraday chart.

  Thank you very much, waiting for an answer.

   

  //PRC_CumulativeVolume ZigZag | indicator

  // — parameters
  percentVariation = 0.04

  zz = ZigZag[percentVariation](close)

  peak = zz<zz[1] and zz[1]>zz[2]
  tough = zz>zz[1] and zz[1]<zz[2]

  cumV = cumV+volume

  if peak then
  text = cumV/1000
  //drawtext(“#text#K”,barindex[1],cumV[1]+0.17*cumV[1],Dialog,Bold,12) coloured(0,200,0)
  //drawsegment(barindex[1],cumV[1]+0.20*cumV[1],previousX,previousY)
  cumV = Volume
  color = -1
  previousX = barindex[1]
  previousY = cumV[1]+0.20*cumV[1]
  elsif tough then
  text = cumV/1000
  //drawtext(“#text#K”,barindex[1],cumV[1]+0.23*cumV[1],Dialog,Bold,12) coloured(200,0,0)
  //drawsegment(barindex[1],cumV[1]+0.20*cumV[1],previousX,previousY)
  cumV = Volume
  color = 1
  previousX = barindex[1]
  previousY = cumV[1]+0.20*cumV[1]
  endif

  return cumV coloured by color

  

  GustavoL.O

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  06/21/2023 at 11:01 PM #216577
  robertogozzi

  Try increasing the units on the graph, 1000 or more.

  

  robertogozzi

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  06/22/2023 at 4:09 PM #216626
  GustavoL.O

  Thanks! But it’s already at 10k. Zigzag does not update, it continues with a normal histogram, but when I apply the indicator again in modify indicator yes, then it resumes the correct zig zag calculation

  

  GustavoL.O

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  06/22/2023 at 5:30 PM #216631
  robertogozzi

  Sorry, I can’t figure out why.

   

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  GustavoL.O

  

  robertogozzi

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  06/23/2023 at 10:10 AM #216649
  Nicolas

  Because the zigzag is repainting, you want the indicator calculated upon it to recalculate the past datas also. With that code, it is not possible, that would need a complete rewrite of it.

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  GustavoL.O

  

  Nicolas

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  06/23/2023 at 12:33 PM #216655
  GustavoL.O

  Hi Nicolas, thanks for the reply. (I guess the code is not strange for you right = ) ..) By the way, your indicators are great, they are amazing, thanks for sharing.
  The code works very well, I like it a lot, it’s very useful for me. Only that, on intraday I often (not always) have to enter “Modify indicator” and click on “Apply to…” so that the indicator “updates” the calculation. This often plots a different current histogram than it was…

  What is the path, what should I do, how would this rewrite be possible?

  best regards,
  Gustavo

  

  GustavoL.O

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  06/23/2023 at 1:55 PM #216657
  GustavoL.O

  Here are two examples, in the second screenshot after I entered Modify Incadtor and clicked Apply to… the indicator plotted the corrected cumulative histogram

  

  GustavoL.O

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  06/26/2023 at 10:06 AM #216771
  Nicolas

  Ok, so the below version will plot all the volumes accumulation from any top or bottom of the zigzag variation of “percentVariation”, from the current candle in the past of the chart, so it will repaint the whole indicator on each tick and therefore no need to reload it from time to time.

  I introduced a setting “BarsLimit” to fix how many volumes bars to be plotted in the past.

  //PRC_CumulativeVolume ZigZag | indicator defparam drawonlastbaronly=true // — parameters percentVariation = 0.04 BarsLimit = 200 //how many historgram to draw? // ----- zz = ZigZag[percentVariation](close) peak = zz<zz[1] and zz[1]>zz[2] tough = zz>zz[1] and zz[1]<zz[2] cumV = cumV+volume $barvol[barindex]=cumv //store in an array the current volume for that bar $barcolor[barindex]=color //color of current trend if peak then cumV = Volume color = -1 elsif tough then cumV = Volume color = 1 endif if islastbarupdate then a = 0 for i = barindex downto barindex-barslimit do r=255 g=0 if $barcolor[i]>0 then r=0 g=155 endif drawrectangle(barindex[a],$barvol[i],barindex[a],0) coloured(r,g,0) a=a+1 next endif return cumV coloured(0,0,0,0)

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  //PRC_CumulativeVolume ZigZag | indicator   defparam drawonlastbaronly=true   // — parameters percentVariation = 0.04 BarsLimit = 200 //how many historgram to draw? // -----   zz = ZigZag[percentVariation](close)   peak = zz<zz[1] and zz[1]>zz[2] tough = zz>zz[1] and zz[1]<zz[2]   cumV = cumV+volume   $barvol[barindex]=cumv //store in an array the current volume for that bar $barcolor[barindex]=color //color of current trend   if peak then cumV = Volume color = -1 elsif tough then cumV = Volume color = 1 endif   if islastbarupdate then a = 0 for i = barindex downto barindex-barslimit do r=255 g=0 if $barcolor[i]>0 then r=0 g=155 endif drawrectangle(barindex[a],$barvol[i],barindex[a],0) coloured(r,g,0) a=a+1 next endif   return cumV coloured(0,0,0,0)

  

  Nicolas

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  06/26/2023 at 10:17 AM #216779
  Nicolas

  For reference, just added the indicator into the library: Cumulative Volume ZigZag (live version)

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  GustavoL.O

  

  Nicolas

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  07/26/2023 at 3:36 PM #218173
  GustavoL.O

  Hello Nicolas,

  thank you very much!!! I will test this! Tks!

  

  GustavoL.O

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