xarray has both bfill and ffill for DataArrays. The implementation useless bottleneck https://github.com/pydata/bottleneck.
Le lun. 20 mai 2024, à 13 h 22, Warren Weckesser <warren.weckes...@gmail.com> a écrit : > On Mon, May 20, 2024 at 9:06 AM Raquel Braunschweig via > NumPy-Discussion <numpy-discussion@python.org> wrote: > > > > Hello everyone, > > > > My colleague and I will be opening a Pull Request (PR) about adding > bfill() (backward fill) function to NumPy. This function is designed to > fill NaN values in an array by propagating the next valid observation > backward along a specified axis. We believe this addition will be highly > useful for data preprocessing and manipulation tasks. > > > This was proposed earlier this year in this issue: > https://github.com/numpy/numpy/issues/25823 > > Take note of rkern's comment in that issue; I think most NumPy > developers will agree with what he says there. > > Warren > > > > > > Here are some key points regarding our proposed implementation: > > > > Function Explanation: The bfill() function identifies NaN values in an > array and replaces them by copying the next valid value in the array > backwards. Users can specify the axis along which the filling should be > performed, providing flexibility for different data structures. > > Use Cases: This function is particularly beneficial in time series > analysis, data cleaning, and preparing datasets for machine learning models. > > > > We are looking forward to your feedback and suggestions. > > > > Thank you for your attention and we appreciate your support. > > > > Best regards, > > Raquel and Gonçalo > > _______________________________________________ > > NumPy-Discussion mailing list -- numpy-discussion@python.org > > To unsubscribe send an email to numpy-discussion-le...@python.org > > https://mail.python.org/mailman3/lists/numpy-discussion.python.org/ > > Member address: warren.weckes...@gmail.com > _______________________________________________ > NumPy-Discussion mailing list -- numpy-discussion@python.org > To unsubscribe send an email to numpy-discussion-le...@python.org > https://mail.python.org/mailman3/lists/numpy-discussion.python.org/ > Member address: george.tro...@gmail.com >
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