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Append=False not working for AllStrategy

See original GitHub issue

Which version are you running? The lastest version is on Github. Pip is for major releases.

import pandas_ta as ta
print(ta.version)

version == 0.3.14b0

Upgrade.

$ pip install -U git+https://github.com/twopirllc/pandas-ta

Describe the bug A clear and concise description of what the bug is. when trying to calculate values for all indicators using below code, the data by default gets appended to the dataframe and there is no option to override it. Using “append=False” does not work. This makes it difficult to use this on streaming data.

To Reproduce Provide sample code. df.ta.strategy(‘All’, append=False, verbose=True, timed=True)

Expected behavior A clear and concise description of what you expected to happen. “append=False” should ensure that output of AllStrategy is not added to source dataframe.

Screenshots If applicable, add screenshots to help explain your problem.

Additional context Add any other context about the problem here.

Thanks for using Pandas TA!

Issue Analytics

  • State:open
  • Created 2 years ago
  • Comments:15 (9 by maintainers)

github_iconTop GitHub Comments

1reaction
jcofficommented, Nov 20, 2021

I’m not OP. But if you’re interested here are some examples of Alpaca’s.

Here is their documentation for their python SDK.

0reactions
twopirllccommented, Jun 7, 2022

Hey @manjrem,

df.ta.study(“All”, append=False) or df.ta.strategy(“All”, append=False) is working as expected.

Great! Also ta.strategy() is depreciated in lieu of ta.study().

Thank you so much for accommodating and incorporating the request.

No problem. Thanks for your patience.


Amiss

The only things which seems amiss about the output is that …

I asked this exact question on 2/20:

Or is it supposed to print to stdout and return resultant the TA DataFrame?

You replied:

If i mention “append=False” then the TA calculations should be printed on screen so that i can use them as an input for creating a new data-frame.

Based on that response, I understood that the resultant TA did not need to be returned, only printed.

I do not have a time frame of when to attempt again with so many outstanding issues and other TA Lib indicators than need to be included before I make another Pypi release. Hopefully someone can help in between that time, so I will leave this open.

Kind Regards, KJ

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