Cut/ round digits after comma

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  • Author
    Posts
  • 12/10/2018 at 10:14 PM #86713 quote
    Yves
    Participant
    Junior

    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!

     

    // 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"
    Size-Calculator-1.jpg Size-Calculator-1.jpg
    12/10/2018 at 10:38 PM #86722 quote
    robertogozzi
    Moderator
    Master

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

    12/11/2018 at 12:03 AM #86731 quote
    Vonasi
    Moderator
    Master

    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
    Yves thanked this post
    12/11/2018 at 12:31 PM #86820 quote
    Yves
    Participant
    Junior

    good idea, i think that works! thx!

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

    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?

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Cut/ round digits after comma


ProBuilder: Indicators & Custom Tools

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Yves @yves_emm Participant
Summary

This topic contains 4 replies,
has 4 voices, and was last updated by Frankyboy
7 years, 1 month ago.

Topic Details
Forum: ProBuilder: Indicators & Custom Tools
Language: English
Started: 12/10/2018
Status: Active
Attachments: 1 files
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