natr behaves the same as atr(percent=True)

[wayne5ning]

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

import pandas_ta as ta
print(ta.version) # 0.3.14b0

Do you have TA Lib also installed in your environment?

$ pip list

...
ta-lib                    0.4.28                   pypi_0    pypi
...

Have you tried the development version? Did it resolve the issue?

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

Same issue in dev.

Describe the bug
There are 2 ways to normalize ATR, namely normalizing before averaging and normalizing after averaging. ref https://www.macroption.com/normalized-atr/.

By reviewing the code, both natr and atr(percent=True) results in normalizing after averaging.

To Reproduce
cmp_pandas_ta_natr_atrp.ipynb.zip

Expected behavior
It may be better to have atr(percent=True) to normalize after averaging and natr to normalize before averaging. Or else there is a duplication of implementation, one of them should be removed to remove confusion.