Value ranges for functions #126

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1. mrjbq7 commented on Nov 2, 2016

   

   mrjbq7

   on Nov 2, 2016

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   Hmm, I assume you mean programmatically, and I'm not sure if that's available. Would have to look through some of the Abstract API features in the underlying C library.
2. dawhitefish commented on Nov 2, 2016

   

   dawhitefish

   on Nov 2, 2016

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   Yes, I just wanted to see if it was possible programmatically. If its not I guess I will just have to find the values myself. Thank you for the quick response
3. mrjbq7 commented on Nov 2, 2016

   

   mrjbq7

   on Nov 2, 2016

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   You might look through the output_flags of the Abstract API:

   >>> import talib.abstract
   >>> talib.abstract.MOM.info
   {'display_name': 'Momentum',
    'function_flags': None,
    'group': 'Momentum Indicators',
    'input_names': OrderedDict([('price', 'close')]),
    'name': 'MOM',
    'output_flags': OrderedDict([('real', ['Line'])]),
    'output_names': ['real'],
    'parameters': OrderedDict([('timeperiod', 10)])}
   >>> talib.abstract.MOM.output_flags

   The output_flags is an enum with these possibilities:

   https://github.com/mrjbq7/ta-lib/blob/master/talib/abstract.pyx#L496
4. mario4tier commented on Oct 23, 2026

   

   mario4tier

   on Oct 23, 2026

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   Sadly, no: TA-Lib C has no min/max for continuous outputs such as RSI. Bounded indicators give their range on their ta-lib.org page, e.g. RSI (0 to 100) and WILLR (-100 to 0).

   Pattern outputs (CDL*) do declare their exact values in output_flags: 0, or a sign times 100, plus 80 with "Weak Pattern" and 200 with "Confirmation Pattern" (see the output flags). #778 corrects those descriptions; it takes effect with the next TA-Lib C release.
5. mario4tier

   added a commit that references this issue on Oct 23, 2026

   Describe every TA-Lib C flag in the abstract API

   ...

   2b1c8c8