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`Sortinganalyzer.select_channels()`: update select_channel_extension_data for waveforms/PCA

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Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
58/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Quiet
Tech stack
python
Domain
data

Research direction

Start at SortingAnalyzer.select_channels() and trace select_channel_extension_data for the waveforms and PCA extensions. Check the linked discussion for the expected sparsity slicing, then verify that the helper is private and remains limited to split_by use with aggregated sortings or recordings.

Written by the indexing model from the issue text.

Description

core
Dominant language
Python
Stars
858
Forks
281
Avg merge
2d 20h
Merged PRs (30d)
34

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