linear regression channel screener

• 04/20/2021 at 11:43 PM #167653
  cc267

  Hi, I am trying to make a screener for this indicator -https://www.prorealcode.com/prorealtime-indicators/standard-deviation-standard-error-linear-regression-channel/

  A similar thread here gives some examples but i cant get any of them to work. https://www.prorealcode.com/topic/screener-help-for-nicolass-standard-deviation-error-lr-channel/

  How could i go about screening for when the open price hits the lower band?  Many Thanks

  

  cc267

  Participant

  Topics: 11

  Replies: 24

  Been thanked: 1 time
  04/20/2021 at 11:53 PM #167656
  robertogozzi

  A screener detects and shows an event, while this indicator plots a channel.

  To make a screener out of it you need to tell us what event do you want to be detected and shown. For example when a price touches or breaks one of the outer bands or the middle band or whatever else you want to be detected.

   

  

  robertogozzi

  Moderator

  Topics: 69

  Replies: 16477

  Been thanked: 3643 times
  04/21/2021 at 8:28 AM #167674
  cc267

  Hi Roberto, I wanted it so the screener screens when the open price hits the lower band.

  

  cc267

  Participant

  Topics: 11

  Replies: 24

  Been thanked: 1 time
  04/21/2021 at 8:28 AM #167675
  Nicolas

  That code should work: https://www.prorealcode.com/topic/screener-help-for-nicolass-standard-deviation-error-lr-channel/#post-119103

  

  Nicolas

  Keymaster

  Topics: 81

  Replies: 20828

  Been thanked: 4742 times
  04/21/2021 at 8:33 AM #167677
  cc267

  lin reg

  test = high > linearregression[lookback]+std[lookback]*NbDeviation OR low < linearregression[lookback]-std[lookback]*NbDeviation screener[test]

  1 2 3

  test = high > linearregression[lookback]+std[lookback]*NbDeviation OR low < linearregression[lookback]-std[lookback]*NbDeviation screener[test]

  I’ve manged to get this one to work now. I think the other one the OP posted is not working.

  

  cc267

  Participant

  Topics: 11

  Replies: 24

  Been thanked: 1 time
  04/21/2021 at 10:27 AM #167686
  robertogozzi

  This works:

  //PRC_Std and Ste LinRegChannel | indicator //Standard Deviation and Standard Error //Linear Regression Channel //12.03.2019 //Nicolas @ www.prorealcode.com //Sharing ProRealTime knowledge // --- settings lookback= 200 //channel period ChannelType = 1 //1= Standard Deviation ; 2= Standard Erro NbDeviation = 1 //Deviation multiplier // --- end of settings sumx = 0 sumy = 0 sumxy = 0 sumx2 = 0 for cmpt = lookback downto 0 do tmpx = cmpt tmpy = close[cmpt] sumy = sumy+tmpy sumx = sumx+tmpx sumx2 = sumx2 + (tmpx*tmpx) sumxy = sumxy + (tmpy*tmpx) next n = lookback+1 if (sumx2 = sumx * sumx) then // protection to avoid infinite values b = sumxy - sumx * sumy else b = (n * sumxy - sumx * sumy) / (n * sumx2 - sumx * sumx) endif a = (sumy - b * sumx) / n //channel if ChannelType = 1 then //Standard Deviation dat = std[lookback]*NbDeviation else dat = ste[lookback]*NbDeviation endif //UPPER band //UpperBand = a+b*0+dat //drawsegment(barindex[lookback],(a+b*lookback)+dat,barindex,a+b*0+dat) coloured(colorRed,colorGreen,colorBlue) //LOWER band LowerBand = a+b*0-dat //drawsegment(barindex[lookback],(a+b*lookback)-dat,barindex,a+b*0-dat) coloured(colorRed,colorGreen,colorBlue) Cond = (open CROSSES UNDER LowerBand) OR (max(open,close) >= LowerBand AND min(open,close) <= LowerBand) SCREENER[Cond]

  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

  //PRC_Std and Ste LinRegChannel | indicator //Standard Deviation and Standard Error //Linear Regression Channel //12.03.2019 //Nicolas @ www.prorealcode.com //Sharing ProRealTime knowledge // --- settings lookback= 200 //channel period ChannelType = 1 //1= Standard Deviation ; 2= Standard Erro NbDeviation = 1 //Deviation multiplier // --- end of settings sumx = 0 sumy = 0 sumxy = 0 sumx2 = 0 for cmpt = lookback downto 0 do tmpx = cmpt tmpy = close[cmpt] sumy = sumy+tmpy sumx = sumx+tmpx sumx2 = sumx2 + (tmpx*tmpx) sumxy = sumxy + (tmpy*tmpx) next n = lookback+1 if (sumx2 = sumx * sumx) then // protection to avoid infinite values b = sumxy - sumx * sumy else b = (n * sumxy - sumx * sumy) / (n * sumx2 - sumx * sumx) endif a = (sumy - b * sumx) / n   //channel if ChannelType = 1 then //Standard Deviation dat = std[lookback]*NbDeviation else dat = ste[lookback]*NbDeviation endif //UPPER band //UpperBand = a+b*0+dat //drawsegment(barindex[lookback],(a+b*lookback)+dat,barindex,a+b*0+dat) coloured(colorRed,colorGreen,colorBlue) //LOWER  band LowerBand = a+b*0-dat //drawsegment(barindex[lookback],(a+b*lookback)-dat,barindex,a+b*0-dat) coloured(colorRed,colorGreen,colorBlue) Cond = (open CROSSES UNDER LowerBand) OR (max(open,close) >= LowerBand AND min(open,close) <= LowerBand) SCREENER[Cond]

   

  

  robertogozzi

  Moderator

  Topics: 69

  Replies: 16477

  Been thanked: 3643 times
  04/21/2021 at 9:05 PM #167734
  cc267

  Thanks Nicholas, it looks like this works also now. This will also help me looking into Kirshenbaum bands 🙂

  

  cc267

  Participant

  Topics: 11

  Replies: 24

  Been thanked: 1 time
• Author
  Posts