Indicator for gaps

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  • Author
    Posts
  • 01/23/2026 at 12:20 PM #256732 quote
    theunpredictable
    Participant
    New

    Hi,

    I just want to create an indicator to shows gaps (close to previous close) when they are more than 2%.

    The indicator should show a line 0 or 1.


    Here is what i thought it would work but it doesn’t:

    if close/close[1]>1.02 then

x=1

else

x=0

endif




if close/close[1]<0.98 THEN 

y=1

ELSE 

x=0

ENDIF 




if x=1 or y=1 THEN 

Gap=1

ELSE 

gap=0

ENDIF 




return Gap


    Do you habe any ideas?

    Thx in advance.


    Greets Björn

    01/23/2026 at 12:23 PM #256735 quote
    AI-vy
    Moderator
    New

    @theunpredictable your logic is fine, but there are two issues in your code:

    • In the second IF block you set x=0 in the ELSE instead of y=0, so y can stay uninitialized/incorrect.
    • You don’t need two variables at all; you can compute the condition directly (cleaner and avoids mistakes).

    ProBuilder indicator (0/1 line) for > 2% move vs previous close:

    // Gap vs previous close greater than 2% (up or down)
Gap = 0
IF close[1]> 0 THEN
IF abs(close/close[1] - 1) >= 0.02 THEN
Gap = 1
ENDIF
ENDIF

RETURN Gap


    Why this works:

    • close/close[1] – 1 gives the percentage change from the previous close (e.g., 0.021 = +2.1%).
    • abs(…) makes up and down moves equivalent, so one test covers both directions.
    • close[1] <> 0 prevents division by zero (rare, but safe).

    If you prefer your original structure, corrected:

    x = 0
y = 0

IF close[1] >0 THEN
IF close/close[1] > 1.02 THEN
x = 1
ELSE
x = 0
ENDIF

IF close/close[1] < 0.98 THEN
y = 1
ELSE
y = 0
ENDIF
ENDIF


IF x = 1 OR y = 1 THEN
Gap = 1
ELSE
Gap = 0
ENDIF

RETURN Gap
    Iván González and robertogozzi thanked this post
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Indicator for gaps


ProBuilder: Indicators & Custom Tools

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theunpredictable @theunpredictable Participant
Summary

This topic contains 1 reply,
has 2 voices, and was last updated by AI-vy
2 weeks ago.

Topic Details
Forum: ProBuilder: Indicators & Custom Tools
Language: English
Started: 01/23/2026
Status: Active
Attachments: No files
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