The UNDEFINED keyword; how disable an indicator?

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02/02/2021 at 3:56 PM #160168 quote
drfrdata
Participant

New
Hi, just started on ProBuilder.

I am creating a notional new indicator as follows: –
```
if IntradayBarIndex > 109 AND IntradayBarIndex < (16 * 12) + 3 THEN
atrupper = High + 2
ELSE
atrupper = Undefined
ENDIF
```
and would like to switch the indicator off on the charts overnight. I had thought the keyword ‘UnDefined’ would do this, but it does not appear to work; it simply holds the indicator constant without stopping it from displaying.

Any help greatly appreciated
02/02/2021 at 4:13 PM #160172 quote
Vonasi
Moderator

Master
Once a variable has been defined it is not possible to return it to undefined status.

You could try changing the contrast to zero in the COLOURED instruction.
```
once atrupper = Undefined

if IntradayBarIndex > 109 AND IntradayBarIndex < (16 * 12) + 3 THEN
atrupper = High + 2
c = 255
ELSE
c = 0
ENDIF

return atrupper coloured(128,0,0,c)
```
02/02/2021 at 5:08 PM #160180 quote

drfrdata
Participant

New

Many thanks for quick response; works perfectly

Regards
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The UNDEFINED keyword; how disable an indicator?

ProBuilder: Indicators & Custom Tools

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drfrdata @drfrdata Participant

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This topic contains 2 replies,
has 2 voices, and was last updated by drfrdata
5 years, 2 months ago.

Topic Details

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

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