Cut/ round digits after comma

• 12/10/2018 at 10:14 PM #86713
  Yves

  Hi guys, i hope somebody can help me with the following issue.

  I wrote a little lot size calculator for my chart. The problem is i just want to get 2 digits after comma instead of 4. I tried a lot of different workarounds like “a=round(mashort*100)/100” and other calculations but nothing works for me.

   

   

  thanks in advance!

   

  Size calculator

  // Risk/Trade risk = 150 // currval = Accountcurrency / Tradingcurrency -> Trade USDCAD -> EUR / CAD (*10 for standard Lot) Currval = 6.57 value = 0 atr = AverageTrueRange[5](close)*10000 size = 0 If atr > 100 then value = round(atr/100+0.5) else value = round(atr+0.5) endif // size =risk/(value*currval) size = round(risk/(value*currval)*100)/100 return size as "LOT"

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  // Risk/Trade risk = 150 // currval = Accountcurrency / Tradingcurrency -> Trade USDCAD -> EUR / CAD (*10 for standard Lot) Currval = 6.57 value = 0 atr = AverageTrueRange[5](close)*10000 size = 0 If atr > 100 then value = round(atr/100+0.5) else value = round(atr+0.5) endif // size =risk/(value*currval) size = round(risk/(value*currval)*100)/100 return size as "LOT"

   

  

  Yves

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  12/10/2018 at 10:38 PM #86722
  robertogozzi

  PRT does not allow to set a custom number of digits, so the only available option is to round numbers like you did!

  

  robertogozzi

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  12/11/2018 at 12:03 AM #86731
  Vonasi

  You could do something like this and return the value as an text indicator of its own:

  defparam calculateonlastbars = 1 // Risk/Trade risk = 150 // currval = Accountcurrency / Tradingcurrency -> Trade USDCAD -> EUR / CAD (*10 for standard Lot) Currval = 6.57 value = 0 atr = AverageTrueRange[5](close)*10000 size = 0 If atr > 100 then value = round(atr/100+0.5) else value = round(atr+0.5) endif // size =risk/(value*currval) size = round(risk/(value*currval)*100)/100 drawtext("#size#",barindex,0) coloured(0,0,0) return

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  defparam calculateonlastbars = 1   // Risk/Trade risk = 150 // currval = Accountcurrency / Tradingcurrency -> Trade USDCAD -> EUR / CAD (*10 for standard Lot) Currval = 6.57 value = 0 atr = AverageTrueRange[5](close)*10000 size = 0 If atr > 100 then value = round(atr/100+0.5) else value = round(atr+0.5) endif // size =risk/(value*currval) size = round(risk/(value*currval)*100)/100 drawtext("#size#",barindex,0) coloured(0,0,0) return

   

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  Yves

  

  Vonasi

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  12/11/2018 at 12:31 PM #86820
  Yves

  good idea, i think that works! thx!

  

  Yves

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  01/08/2019 at 10:28 PM #88209
  Frankyboy

  Question: Is it necessary to have PorOrder round calculated lot sizes or are they automatically adjusted/rounded upon position entry with IG? Does anybody know?

  

  Frankyboy

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