pydata / pydata/xarray

sortby with multiple coords using different orders

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#7,688 0 comments 0 reactions 0 assignees View on GitHub

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enhancement topic-pandas-like
Dominant language
Python
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Avg merge
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Description

What is your issue?

sortby with multiple coords using different orders, just like pandas sort_values allow for ascending to be a list of bools describing the order to sort each columm

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start at xarray's sortby entry point and compare the requested behavior with the linked pandas sort_values documentation. Support an ascending list of booleans for multiple coordinates with different orders, then verify the behavior with coverage for mixed ascending and descending coordinate sorts.

Written by the indexing model from the issue text.

Assessment

Tech stack
pandas, python
Domain
data
Issue type
Feature
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
48/100

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