A coding question

Viewing 6 posts - 1 through 6 (of 6 total)
  • Author
    Posts
  • 07/10/2022 at 10:44 AM #197072 quote
    Marco
    Participant
    New

    Hi, it would be nice if someone can answer this….

    Are this 2 code are the same and work the same way?

    CLOSE < low[1] or CLOSE < low[2] or CLOSE < low[3] or CLOSE < low[4]

    ——————————————–

    CLOSE < (low[1] or low[2] or low[3] or low[4])

    Many thanks

    07/10/2022 at 11:16 AM #197073 quote
    Marco
    Participant
    New

    Hi, it would be nice if someone can answer this….

    Are this 3 code are the same and work the same way?

    CLOSE < low[1] or CLOSE < low[2] or CLOSE < low[3] or CLOSE < low[4]

    ——————————————–

    CLOSE < (low[1] or low[2] or low[3] or low[4])

    ————————————————-

    c1 = CLOSE < low[1]

    c2 = CLOSE < low[2]

    c3 = CLOSE < low[3]

    c4 = CLOSE < low[4]

    s1 = c1 or C2 or C3 or c4

    Many thanks

    07/10/2022 at 12:31 PM #197074 quote
    GraHal
    Participant
    Master

    If you number your options then it’s easier fior us to help you as we can easily refer to numbers. 🙂

    This

    S1 = CLOSE < low[1] or CLOSE < low[2] or CLOSE < low[3] or CLOSE < low[4]

    is same as

    c1 = CLOSE < low[1]

    c2 = CLOSE < low[2]

    c3 = CLOSE < low[3]

    c4 = CLOSE < low[4]

    s1 = c1 or C2 or C3 or c4

     

    This one

    CLOSE < (low[1] or low[2] or low[3] or low[4])

    won’t work for what you want it to do, e.g. or  low[2]  will only give you the value of low 2 bars ago.

    Midlanddave thanked this post
    07/10/2022 at 12:39 PM #197075 quote
    JS
    Participant
    Senior
    Code1 = Close<Low[1] or Close<Low[2] or Close<Low[3] or Close<Low[4]
Code2 = Close<Low[1] or Low[2] or Low[3] or Low[4]

c1 = Close<Low[1]
c2 = Close<Low[2]
c3 = Close<Low[3]
c4 = Close<Low[4]

Code3 = c1 or c2 or c3 or c4

Return Code1 as "Code1", Code2 as "Code2", Code3 as "Code3"

    In addition to GraHal’s explanation:

    You can set up a simple indicator to test…

    Then you see that Code1 and Code3 give the same results (0 or 1) but that Code2 is always true (always 1). This is probably because in Code2 you don’t give a condition to Low[2], Low[3] and Low[4]. So you’re basically saying here, is there a Low[2] or a Low[3] or a Low[4] (and there always are).

    GraHal and Midlanddave thanked this post
    07/10/2022 at 2:26 PM #197077 quote
    robertogozzi
    Moderator
    Master
    As to your first post:
    • the first line is correct, it’ll be true whenever CLOSE < anyone of the previous 4 LOWs
    • the second line is logically incorrect, as it will ALWAYS be true, as you do not compare CLOSE to those LOWS; you compare CLOSE to the fact that anyone of those LOWs is <> 0, which cannot be false.
    07/10/2022 at 3:31 PM #197082 quote
    Marco
    Participant
    New
    thank you guys, got it now, very appreciate 🙂
  • Author
    Posts
Viewing 6 posts - 1 through 6 (of 6 total)
  • You must be logged in to reply to this topic.

A coding question


ProOrder: Automated Strategies & Backtesting

New Reply
Author
author-avatar
Marco @wingyip Participant
Summary

This topic contains 5 replies,
has 4 voices, and was last updated by Marco
3 years, 7 months ago.

Topic Details
Forum: ProOrder: Automated Strategies & Backtesting
Language: English
Started: 07/10/2022
Status: Active
Attachments: No files
Logo Logo
Loading...
Do you like cookies? 🍪 We use cookies to ensure you get the best experience on our website. (Learn more)
©2026 ProRealCode - Trading & Coding with ProRealTime™