Barindex – tradeindex trailing stop

• 02/19/2021 at 2:54 PM #161997
  Albaran

  Hi there,

  I’m having trouble visualizing how to code a longstop using the following line of code:

  Longstop = average[barindex - tradeindex](close)

  1	Longstop = average[barindex - tradeindex](close)

  In this example, the system will stop immediately because the indicator has received a parameter that isn’t a number (that’s what PRT says even though I’m not sure to understand this.)

  Be that as it may, to thwart this, I simply modified the previous line of code like this:

  Longstop = average[barindex + 1 - tradeindex](close)

  1	Longstop = average[barindex + 1 - tradeindex](close)

  Now the question that I’m asking myself is whether I need to update the close into Close[1] so as to include the close at the moment I’m in the market in my longstop?

  Because BarIndex has been artificially advanced, does that mean that I have to go back further in time in order for the longstop to take into consideration the close at the moment I’m in the market?

  I would assume so but I’d like a second opinion! Thanks for getting back to me, would be much appreciated!

  

  Albaran

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  02/19/2021 at 3:33 PM #162011
  robertogozzi

  In your first example at extremes barindex – tradeindex can be 0 (which returns an error) or a huge number (such as 1450 or 21716,…).

  In your second example, say barindex= 280 and tradeindex=275, the difference is 6, that is CLOSE[0] (which is barindex 280) through CLOSE[5] (which is barindex  275), so you do NOT need to use [1] next to CLOSE.

   

   

  

  robertogozzi

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  02/19/2021 at 3:55 PM #162014
  Albaran

  I forgot to mention that the longstop also needs to kick in at the very next bar I’m in the market – like a normal stop behavior sort to speak! Does that change anything?

  

  Albaran

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  02/19/2021 at 4:22 PM #162018
  robertogozzi

  No, it doesn’t, since BARINDEX will increase and the result of the expression will, as well. Nothing changes!

   

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  Albaran

  

  robertogozzi

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  02/19/2021 at 4:40 PM #162022
  Albaran

  Okay, thanks a lot! I guess i got confused because of the addition of that +1 constant 🙂

  

  Albaran

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