round down/up

• 07/23/2017 at 1:05 PM #41400
  tav

  How do you round down or up in prorealtime?

  

  tav

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  07/23/2017 at 2:45 PM #41415
  robertogozzi

  ROUND() rounds numbers to the nearest whole number, the documentation is a bit poor, since it shows only the rounding of 9.60.

  I tested this fake strategy (one buy instrution is necessary to be executed) with returns wit no addiotion, adding 0.9 and 0.4, both with positive and negative values, in case you want ALWAYS round to the greatest or to the smallest whole number:

  // returns // +0.0 +0.9 +0.4 //a = round(2.0 + 0.4) // 2 3 2 //b = round(2.4 + 0.4) // 2 3 3 //c = round(2.5 + 0.4) // 3 3 3 //d = round(2.6 + 0.4) // 3 3 3 //e = round(2.7 + 0.4) // 3 4 3 a = round(-2.0 + 0.4) // -2 -1 -2 b = round(-2.4 + 0.4) // -2 -2 -2 c = round(-2.5 + 0.4) // -3 -2 -2 d = round(-2.6 + 0.4) // -3 -2 -2 e = round(-2.7 + 0.4) // -3 -2 -2 GRAPH a AS "a" GRAPH b AS "b" GRAPH c AS "c" GRAPH d AS "d" GRAPH e AS "e" buy 1 contract at market

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  //                             returns //                       +0.0   +0.9   +0.4   //a = round(2.0 + 0.4) //  2      3      2 //b = round(2.4 + 0.4) //  2      3      3 //c = round(2.5 + 0.4) //  3      3      3 //d = round(2.6 + 0.4) //  3      3      3 //e = round(2.7 + 0.4) //  3      4      3   a = round(-2.0 + 0.4) //  -2     -1     -2 b = round(-2.4 + 0.4) //  -2     -2     -2 c = round(-2.5 + 0.4) //  -3     -2     -2 d = round(-2.6 + 0.4) //  -3     -2     -2 e = round(-2.7 + 0.4) //  -3     -2     -2   GRAPH a AS "a" GRAPH b AS "b" GRAPH c AS "c" GRAPH d AS "d" GRAPH e AS "e"   buy 1 contract at market

   

   

   

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  Antus, icharttop

  

  robertogozzi

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  07/23/2017 at 2:54 PM #41420
  robertogozzi

  So, it appears that to ALWAYS round a number to the nearest greatest whole number you have to add 0.4 (both for positive and negative numbers).

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  Marius

  

  robertogozzi

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  07/23/2017 at 3:02 PM #41425
  tav

  perfect thank you!

  

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  07/23/2017 at 4:29 PM #41430
  Nicolas

  By following the link, you can find a nice little code snippet made by Pepsmile that floor and ceil a number to the nearest one.

  

  Nicolas

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  02/03/2020 at 2:35 PM #118575
  dupont_a

  Hello,
  I know this topic is old but it could be helps users like me who was affected by that issue.
  I would like to get only the integer without decimal, and without a round to superior integer when my value is above 0.5

  So I’ve created this code to get only the integer.

  n= decimal number IF round(n) > n then          // Round(n) should return 2 in case of n = 1.53.         // if 2 > 1.53 n = n - 0.5                   // We substract 0.5 to be in lower round decimal         // 1.53-0.5 = 1.03 n =  round(n)                 // We can make a round of the new n                      // round(1.03) = 1 ENDIF

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  n= decimal number   IF round(n) > n then          // Round(n) should return 2 in case of n = 1.53.         // if 2 > 1.53 n = n - 0.5                   // We substract 0.5 to be in lower round decimal         // 1.53-0.5 = 1.03 n =  round(n)                 // We can make a round of the new n                      // round(1.03) = 1 ENDIF

   

  Have fun 🙂

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  Sascha

  

  dupont_a

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  02/03/2020 at 2:44 PM #118576
  Nicolas

  Thank you @dupont_a , however there are now 2 new instructions in Prorealtime v11: floor and ceil

  In a future update, the ROUND instruction will also have the capability to handle digits, such as ROUND(close,2). I’m testing it and it works fine.

   

   

  

  Nicolas

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  02/03/2020 at 2:59 PM #118579
  dupont_a

  Thx Nicolas, I’m still on v10.3.
  I’m glad to learn that PRT has solved that for new version 🙂

  PS : Sorry for haven’t use  “insert PRT code” button

  

  dupont_a

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  02/03/2020 at 5:52 PM #118596
  Vonasi

  dupont_a wrote:

  PS : Sorry for haven’t use  “insert PRT code” button

  I tidied it up ! )

  

  Vonasi

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