Screener – capturing three possible states?

• 03/18/2020 at 5:24 PM #122473
  robdav

  I’m trying to write a screener that can catch three possible states.

  They are:

  • Time signal only
  • Price signal only
  • Price & time signal together

  I want to be able to return one result which identifies which one it is but can only get two states.

  Is it possible, if so how? Could I capture six if need be?

  Thanks again

  Rob

  Screener capture three states

  IF TimeAlertLong = 1 THEN SignalAlert = 10 ENDIF IF PriceAlertLong = 1 THEN SignalAlert = SignalAlert + 10 ENDIF IF PriceAlertLong = 1 AND TimeAlertLong = 1 THEN SignalAlert = SignalAlert + 20 ENDIF

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  IF TimeAlertLong = 1 THEN SignalAlert = 10 ENDIF   IF PriceAlertLong = 1 THEN SignalAlert = SignalAlert + 10 ENDIF   IF PriceAlertLong = 1 AND TimeAlertLong = 1 THEN SignalAlert = SignalAlert + 20 ENDIF

   

  

  robdav

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  03/18/2020 at 6:31 PM #122489
  robertogozzi

  There you go, each 1 (true) will have its own position as well as each 9 (false). “99” means ALL conditions are false:

  IF TimeAlertLong = 1 THEN SignalAlert = 1 else SignalAlert = 9 ENDIF IF PriceAlertLong = 1 THEN SignalAlert = SignalAlert + 10 else SignalAlert = SignalAlert + 90 ENDIF IF SignalAlert = 99 THEN SignalAlert = 0 Endif SCREENER[SignalAlert](SignalAlert AS "11")

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  IF TimeAlertLong = 1 THEN    SignalAlert = 1 else    SignalAlert = 9 ENDIF IF PriceAlertLong = 1 THEN    SignalAlert = SignalAlert + 10 else    SignalAlert = SignalAlert + 90 ENDIF   IF SignalAlert = 99 THEN    SignalAlert = 0 Endif SCREENER[SignalAlert](SignalAlert AS "11")

  the third signal is not needed, it is when the returned criterion is “11”, while the other two values can be “91” or “19”.

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  robertogozzi

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  03/18/2020 at 7:54 PM #122499
  robdav

  Thanks Roberto.

  If I wanted to do the same but incorporate SHORT signals within the same screener (same principle applies, three possible states) is that possible?

  Hope you’re staying out of the way of this damn virus!

  

  robdav

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  03/18/2020 at 9:45 PM #122509
  robertogozzi

  You can use 2 and 20 for short signals, leaving 9 and 99 to have these combinations:

  • 99 = 0 = NO signal
  • 19
  • 91
  • 11
  • 29
  • 92
  • 22

  If both opposite signals can occur you might also have:

  • 12
  • 21

   

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  03/18/2020 at 9:47 PM #122510
  robertogozzi

  I am fine, just staying longer in front of my PC, so I have more time to reply 🙂

  

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  03/18/2020 at 10:01 PM #122515
  robdav

  Thanks again Roberto

  I think I’m with you. I will work on this in the morning and share the alert code back just in case it’s helpful for anyone else in the future.

  Glad you’re staying out of the way of things. We aren’t quite in lock down here in the UK but the supermarket shelves were very bare earlier when we went out 🙁

  

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  03/19/2020 at 1:21 PM #122573
  robdav

  Hi Roberto

  I seem to have something wrong in my logic as I cannot get the short signals to activate at all. Can you help pelase?

  Thnaks agian, Rob

  I have converted the code to an indicator to help debug it…

  // Hardcoded variables // Can be either 0 or 2 TimeAlertShort = 2 PriceAlertShort = 0 // Can be either 0 or 1 TimeAlertLong = 0 PriceAlertLong = 0 // Short signals // 29 = Price // 92 = Time // 22 = Price & Time // 9 = no signal IF TimeAlertShort = 2 THEN SignalAlert = 2 ELSE SignalAlert = 9 ENDIF IF PriceAlertShort = 2 THEN SignalAlert = SignalAlert + 20 ELSE SignalAlert = SignalAlert + 90 ENDIF // Long signals // 19 = Price // 91 = Time // 11 = Price & Time // 99 = no signal IF TimeAlertLong = 1 THEN SignalAlert = 1 ELSE SignalAlert = 9 ENDIF IF PriceAlertLong = 1 THEN SignalAlert = SignalAlert + 10 ELSE SignalAlert = SignalAlert + 90 ENDIF IF SignalAlert = 99 THEN SignalAlert = 0 ENDIF RETURN SignalAlert as "Signal Alert"

  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

  // Hardcoded variables   // Can be either 0 or 2 TimeAlertShort = 2 PriceAlertShort = 0   // Can be either 0 or 1 TimeAlertLong = 0 PriceAlertLong = 0   // Short signals   // 29 = Price // 92 = Time // 22 = Price & Time // 9 = no signal   IF TimeAlertShort = 2 THEN SignalAlert = 2 ELSE SignalAlert = 9 ENDIF   IF PriceAlertShort = 2 THEN SignalAlert = SignalAlert + 20 ELSE SignalAlert = SignalAlert + 90 ENDIF   // Long signals   // 19 = Price // 91 = Time // 11 = Price & Time // 99 = no signal   IF TimeAlertLong = 1 THEN SignalAlert = 1 ELSE SignalAlert = 9 ENDIF IF PriceAlertLong = 1 THEN SignalAlert = SignalAlert + 10 ELSE SignalAlert = SignalAlert + 90 ENDIF IF SignalAlert = 99 THEN SignalAlert = 0 ENDIF   RETURN SignalAlert as "Signal Alert"

   

  

  robdav

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  03/19/2020 at 2:01 PM #122579
  robertogozzi

  Your line 53 ahould read (you coded it as if it were an indicator):

  SCREENER[SignalAlert](SignalAlert as "99")

  1	SCREENER[SignalAlert](SignalAlert as "99")

  Moreover when SHORT conditions are true, lines 40 and 46 will reset signal to 99.

  This is the correct code:

  // Hardcoded variables // Can be either 0 or 2 TimeAlertShort = 2 PriceAlertShort = 0 // Can be either 0 or 1 TimeAlertLong = 0 PriceAlertLong = 0 // Short signals // 29 = Price // 92 = Time // 22 = Price & Time // 9 = no signal // Long signals // 19 = Price // 91 = Time // 11 = Price & Time // 99 = no signal IF TimeAlertShort = 2 THEN SignalAlert = 2 ELSIF TimeAlertLong = 1 THEN SignalAlert = 1 ELSE SignalAlert = 9 ENDIF IF PriceAlertShort = 2 THEN SignalAlert = SignalAlert + 20 ELSIF PriceAlertLong = 1 THEN SignalAlert = SignalAlert + 10 ELSE SignalAlert = SignalAlert + 90 ENDIF IF SignalAlert = 99 THEN SignalAlert = 0 ENDIF SCREENER[SignalAlert](SignalAlert as "99")

  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

  // Hardcoded variables // Can be either 0 or 2 TimeAlertShort = 2 PriceAlertShort = 0 // Can be either 0 or 1 TimeAlertLong = 0 PriceAlertLong = 0 // Short signals // 29 = Price // 92 = Time // 22 = Price & Time // 9 = no signal   // Long signals // 19 = Price // 91 = Time // 11 = Price & Time // 99 = no signal   IF TimeAlertShort = 2 THEN    SignalAlert = 2 ELSIF TimeAlertLong = 1 THEN    SignalAlert = 1 ELSE    SignalAlert = 9 ENDIF IF PriceAlertShort = 2 THEN    SignalAlert = SignalAlert + 20 ELSIF PriceAlertLong = 1 THEN    SignalAlert = SignalAlert + 10 ELSE    SignalAlert = SignalAlert + 90 ENDIF IF SignalAlert = 99 THEN    SignalAlert = 0 ENDIF SCREENER[SignalAlert](SignalAlert as "99")

   

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  robertogozzi

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  03/19/2020 at 2:35 PM #122584
  robdav

  Perfect, thanks again Roberto.

  

  robdav

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