division by 0 error

• 12/10/2020 at 12:59 PM #153213
  Mishap

  RateOfChangeA = ROC[3](close) RateOfChangeB = ROC[3](close[3]) Change = RateOfChangeA/RateOfChangeB RETURN change

  1 2 3 4 5

  RateOfChangeA = ROC[3](close) RateOfChangeB = ROC[3](close[3]) Change = RateOfChangeA/RateOfChangeB   RETURN change

  hi guys,

  I have read through the forums & found that this issue exists in several scenarios, i understand that the divisor cannot divide by 0 but neither of these should be throwing a 0.

  does anyone know what would cause this error with the code above, the code worked well without these lines but now that i have added them it stops the strategy from working.

  thanks in advance & apologies if this has been answered. the threads i read never actually had a fix just several ideas that seemed impractical.

  

  Mishap

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  12/10/2020 at 1:03 PM #153214
  Mishap

  i think i found the issue. its in the RateOfChangeB ROC[3](close[3]) i changed to RateOfChangeB ROC[3](close[2]). lets see if this throws the error

  

  Mishap

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  12/10/2020 at 1:04 PM #153215
  Nicolas

  Why do you think that this is this code that is throwing this error please? Are you using a CALL to get the value of “change”?

  

  Nicolas

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  12/10/2020 at 1:32 PM #153217
  Mishap

  Hi Nicolas, the strategy was working fine & running without the addition of the ROC function. This is what makes me think it’s this piece of code.

  I am still quite new to coding & strategy development so I am unsure exactly what a call is. I am assuming that a call is used when I want to use the parameter “change”.

  “Change” is used further in the code when sending buy or sell signal.

  apologies for code below doing this on mobile & having issues with editor.

  IF Change >= 9 THEN

  BUY X at market

  ENDIF

  

  Mishap

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  12/10/2020 at 1:33 PM #153218
  Mishap

  Side note changing the variable didn’t help

  

  Mishap

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  12/10/2020 at 1:42 PM #153221
  Nicolas

  Try to replace your code with:

  RateOfChangeA = ROC[3](close) RateOfChangeB = ROC[3](close[3]) Change = RateOfChangeA/max(ticksize,RateOfChangeB) RETURN change

  1 2 3 4 5

  RateOfChangeA = ROC[3](close) RateOfChangeB = ROC[3](close[3]) Change = RateOfChangeA/max(ticksize,RateOfChangeB)   RETURN change

  It will ensure that the divisor is at least minimal size of a tick.

  

  Nicolas

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