Conversion of SuperTrendVolatility Indicator from TradingView

• 05/18/2022 at 4:33 PM #193392
  Nicolas

  Please what precise instrument and timeframe?

  

  Nicolas

  Keymaster

  Topics: 81

  Replies: 20863

  Been thanked: 4773 times
  05/18/2022 at 4:48 PM #193400
  Hunry86

  Hi Nicolas, so I use it on dax daily, nasdaq daily and 4 hours, crude oil 4 hours and daily, it doesn’t work anywhere; the units are 10000; however I noticed that when I download the prc_supertrendvolatility it appears with -1 instead of -2 as it is reported on the link … maybe the correct file has not been loaded?

  

  Hunry86

  Participant

  Topics: 6

  Replies: 16

  Been thanked: 0 times
  05/18/2022 at 4:59 PM #193404
  Nicolas

  It depends of the units displayed, it fails somewhere back in history because of lack of volume or .. let me check again! 🙄

  

  Nicolas

  Keymaster

  Topics: 81

  Replies: 20863

  Been thanked: 4773 times
  05/18/2022 at 5:02 PM #193405
  Nicolas

  Yes, because there are no volumes far back in history (which are needed for the correct calculation of the indicator), so limit the units displayed and add Volume indicator on the chart to be sure volumes are present.

  1 user thanked author for this post.

  Hunry86

  

  Nicolas

  Keymaster

  Topics: 81

  Replies: 20863

  Been thanked: 4773 times
  05/18/2022 at 5:09 PM #193408
  Hunry86

  Hi Nicolas, first of all thank you for your availability, I have placed 1000 units, and I am not having any problems. You’ve been super nice, I’ve been looking for this indicator for a long time. Thanks again 🙂

  

  Hunry86

  Participant

  Topics: 6

  Replies: 16

  Been thanked: 0 times
  05/21/2022 at 4:54 AM #193552
  mikechan883

  Hi Nicolas,

  Thanks so much for your great help on conversion!
  May I ask you for further favor? Can you show me how to translate this indicator to a screener to indicate which stock fulfill the BUY/SELL signal?

  i.e. based on the following part of the original script
  long = trend == 1 and trend[1] == -1
  short = trend == -1 and trend[1] == 1
  //
  last_long = 0.0
  last_short = 0.0
  last_long := long ? time : nz(last_long[1])
  last_short := short ? time : nz(last_short[1])

  buy = crossover(last_long, last_short)
  sell = crossover(last_short, last_long)

  

  mikechan883

  Participant

  Topics: 7

  Replies: 11

  Been thanked: 0 times
  05/23/2022 at 12:24 PM #193714
  Nicolas

  Here is the screener version of that indicator:

  //PRC_SuperTrend Volatility | screener //Nicolas @ www.prorealcode.com // --- settings stmult = 2 //Trend Multiplier minval = 0, maxval = 100, step = 0.01 stperiod = 10 //Trend Period factor = 0.5 //Volatility Factor minval=0.1, maxval=5 // --- end of settings if barindex>28 then hilow = max(pointsize,((high - low)*100)) openclose = ((close - open)*100) if volume<>volume[1] then if close>close[1] then myobv=myobv+volume elsif close<close[1] then myobv=myobv-volume endif endif vol = (myobv / hilow) spreadvol = (openclose * vol) //VPT = spreadvol + cumsum(spreadvol) windowlen = 28 vlen = 14 pricespread = std[windowlen](range) vx = spreadvol + cumsum(spreadvol) smooth = average[vlen,1](vx) vspread = std[windowlen](vx - smooth) shadow = (vx - smooth) / vspread * pricespread if shadow > 0 then out = high + shadow else out = low + shadow endif // CALCULATIONS // uplev =out - (stmult * averagetruerange[stperiod]) dnlev = out + (stmult * averagetruerange[stperiod]) // iVolatility = 100 * summation[1](100 * averagetruerange[1] / low) / 100 perc = (iVolatility*0.01) *factor c=barindex n = dnlev x =uplev once lb = n once hb = x once l1 = out once hl = out if c = 0 then if x >= hb[1] then hb = x hl = out trend = 1 else lb = n l1 = out trend = -1 endif endif if c > 1 then if trend[1] > 0 then hl = max(hl[1], out) if x >= hb[1] then hb = x else if n < hb[1] - hb[1] * perc then lb = n l1 = out trend = -1 endif endif else l1 = min(l1[1], out ) if n <= lb[1] then lb = n else if x > lb[1] + lb[1] * perc then hb = x hl = out trend = 1 endif endif endif endif endif screener[trend<>trend[1]]

  1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100

  //PRC_SuperTrend Volatility | screener //Nicolas @ www.prorealcode.com   // --- settings stmult   = 2 //Trend Multiplier minval = 0, maxval = 100, step = 0.01 stperiod = 10 //Trend Period factor = 0.5 //Volatility Factor minval=0.1, maxval=5 // --- end of settings   if barindex>28 then hilow = max(pointsize,((high - low)*100)) openclose = ((close - open)*100) if volume<>volume[1] then if close>close[1] then myobv=myobv+volume elsif close<close[1] then myobv=myobv-volume endif endif vol = (myobv / hilow) spreadvol = (openclose * vol) //VPT = spreadvol + cumsum(spreadvol) windowlen = 28   vlen = 14 pricespread = std[windowlen](range)   vx =  spreadvol + cumsum(spreadvol) smooth = average[vlen,1](vx) vspread = std[windowlen](vx - smooth) shadow = (vx - smooth) / vspread * pricespread   if shadow > 0 then out = high + shadow else out = low + shadow endif // CALCULATIONS // uplev =out - (stmult * averagetruerange[stperiod]) dnlev = out + (stmult * averagetruerange[stperiod]) // iVolatility = 100 * summation[1](100 * averagetruerange[1] / low) / 100 perc = (iVolatility*0.01) *factor   c=barindex   n = dnlev x =uplev   once lb = n once hb = x once l1 = out once hl = out   if c = 0 then if x >= hb[1] then hb = x hl = out trend = 1 else lb = n l1 = out trend = -1 endif endif   if c > 1 then   if trend[1] > 0 then hl = max(hl[1], out) if x >= hb[1] then hb = x else              if n < hb[1] - hb[1] * perc then lb = n l1 = out   trend = -1 endif endif else l1 = min(l1[1], out )   if n <= lb[1] then lb = n else              if x > lb[1] + lb[1] * perc then hb = x hl = out trend = 1 endif endif endif endif endif   screener[trend<>trend[1]]

   

  

  Nicolas

  Keymaster

  Topics: 81

  Replies: 20863

  Been thanked: 4773 times
  06/25/2022 at 11:41 AM #196078
  mikechan883

  Hi Nicholas,

  I try the screener version of SuperTrendVolatility SCREENER as provided by your last posted.

  I encountered 2 issues:

  1. The screener always return NO RESULT. However, when I try to comment out the condition “if barindex>28 then …“, there is result.  Can you enlight me? Is this condition need for screener?
  2. After commented out the barindex condition, I try to further analyze the result by try scanning out the stock with trend = -1 with the clause “SCREENER[trend = -1]“. There is result available. However, when I try to further analyze the result by try scanning out the stock with trend = 1, there is NO result available. I have ensure there is stock has trend = 1 by finding one stock manually, putting it in my personal list, and use the screener with clause “SCREENER[trend = 1]“, but no result is available. See attached for the stock chart with SuperTrendVolatility trend captured. Any idea?

  Appreciate your professional input!

  Mike

   

  

  mikechan883

  Participant

  Topics: 7

  Replies: 11

  Been thanked: 0 times
  07/02/2022 at 7:51 AM #196597
  mikechan883

  Hi Nicolas,

  do you have any idea of my queues on 25/Jun as recapped below, many thanks!

  I try the screener version of SuperTrendVolatility SCREENER as provided by your last posted.

  I encountered 2 issues:

  1. The screener always return NO RESULT. However, when I try to comment out the condition “if barindex>28 then …“, there is result.  Can you enlight me? Is this condition need for screener?
  2. After commented out the barindexcondition, I try to further analyze the result by try scanning out the stock with trend = -1 with the clause “SCREENER[trend = -1]“. There is result available. However, when I try to further analyze the result by try scanning out the stock with trend = 1, there is NO result available. I have ensure there is stock has trend = 1 by finding one stock manually, putting it in my personal list, and use the screener with clause “SCREENER[trend = 1]“, but no result is available. See attached for the stock chart with SuperTrendVolatility trend captured. Any idea?

   

   

  

  mikechan883

  Participant

  Topics: 7

  Replies: 11

  Been thanked: 0 times
  07/02/2022 at 10:13 AM #196604
  Nicolas

  1/ not needed

  2/ I think the problem could come from the vx variable which is cumulating values from the beginning of history, and since ProScreener doesnt share the same bars history as the one displayed on the charts (way less bars..), then the cumulation is different and the calculation of the indicator is different, therefore different results..

  This is the simplier explanation I have right now without much investigation.

  

  Nicolas

  Keymaster

  Topics: 81

  Replies: 20863

  Been thanked: 4773 times
  07/02/2022 at 11:06 AM #196611
  mikechan883

  Hi Nicolas,

  thanks so much for your speedy reply! Any suggestion to resolve the issue #2 so that the screener can work? Or under current ProRealCode capability it is infeasible?

  Mike

  

  mikechan883

  Participant

  Topics: 7

  Replies: 11

  Been thanked: 0 times
  07/04/2022 at 10:46 AM #196718
  Nicolas

  Sorry, but as long as the 2 data series are different, their cumulation will be different, so I don’t know how it could be “resolved” 😆

  

  Nicolas

  Keymaster

  Topics: 81

  Replies: 20863

  Been thanked: 4773 times
• Author
  Posts