numpy_ext | extension library for NumPy that implements common array | Storage library
kandi X-RAY | numpy_ext Summary
kandi X-RAY | numpy_ext Summary
An extension library for NumPy that implements common array operations not present in NumPy
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Top functions reviewed by kandi - BETA
- Implementation of expstep .
- Apply a function to a list of arrays .
- Apply a function to a rolling window .
- Create a rolling window of an array .
- Expand an array .
- Create nans .
- Prepend nans to the given array .
- Apply a function to an array .
- Fill missing values with given value .
- Fill missing values .
numpy_ext Key Features
numpy_ext Examples and Code Snippets
Community Discussions
Trending Discussions on numpy_ext
QUESTION
Is it possible to use panda's expanding function to calculate the coefficient of a polynomial regression using several columns of the window object?
I have a data frame which has two columns, a predictor and a response. I want to use pandas' expanding() function to calculate the corresponding coefficients of a second order polynomial regression for each expanding pair of series. For each row I would like to get the updated coefficients from the regression applied to all previous rows.
...ANSWER
Answered 2021-Apr-22 at 16:35I suspect what you are looking for is the new df.expanding(..., method='table')
in the upcoming pandas=1.3
(see "Other enhancements").
In the meantime, you can do it "by hand", using a loop (sorry):
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Install numpy_ext
You can use numpy_ext like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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