Error A positive integer field is expected

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  • Author
    Posts
  • 02/18/2021 at 3:49 AM #161869 quote
    dbl007
    Participant
    Junior

    I got the Calculation error: ‘Error in the indicator… A positive integer field is expected with Count’

    Decrease = Close < Close[1]
Count = 0
FOR i = 1 TO BarIndex DO
 IF Decrease[Count] THEN
  Count = Count - 1
 ELSE
  BREAK
 ENDIF
NEXT
RETURN Count

    I have to re-code it as

    Decrease = Close < Close[1]
Count = 0
FOR i = 1 TO BarIndex DO
 IF Decrease[Count] THEN
  Count = Count + 1
 ELSE
  BREAK
 ENDIF
NEXT
n = 0 - Count
RETURN n

    Why ?

    02/18/2021 at 7:53 AM #161877 quote
    robertogozzi
    Moderator
    Master

    If you discovered how to work it out correctly it’s because you got the hang of it!

    02/18/2021 at 8:54 AM #161886 quote
    Vonasi
    Moderator
    Master

    You answered your own question. If a negative integer is not allowed then don’t use one and use a positive one that is allowed instead!

    02/18/2021 at 9:46 AM #161900 quote
    Nicolas
    Keymaster
    Master

    Because COUNT variable is sometimes negative! 😉 Not possible to use a variable with a negative offset!

    Decrease[-1] will flash that error.

    02/18/2021 at 2:51 PM #161925 quote
    dbl007
    Participant
    Junior

    Haha. Now I realized my mistake. I copy this example somewhere without realizing that it use the Count to index. I ‘assume’ it use the variable i to index.

    The correct code should be

    Decrease = Close < Close[1]
Count = 0
FOR i = 0 TO BarIndex - 1 DO
 IF Decrease[i] THEN
  Count = Count - 1
 ELSE
  BREAK
 ENDIF
NEXT

RETURN Count

    I learn the danger pf copy/paste code.

    Thks everyone for taking interest and interesting comments.  Cheers.

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Error A positive integer field is expected


ProBuilder: Indicators & Custom Tools

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Author
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dbl007 @dbl007 Participant
Summary

This topic contains 4 replies,
has 4 voices, and was last updated by dbl007
4 years, 12 months ago.

Topic Details
Forum: ProBuilder: Indicators & Custom Tools
Language: English
Started: 02/18/2021
Status: Active
Attachments: No files
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