Connor Lane

ENH: sparse.csgraph.dijkstra: add option to return sparse distance matrix

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#### Reference issue Closes gh-16585. #### What does this implement/fix? Adds an option to `csgraph.dijkstra` for returning a sparse distance matrix. #### Additional information I used libcpp vectors to construct...

:memo: Add clarifying comments in default pipeline config

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## Description This PR adds a few clarifying comments to the default `pipeline_config_default.yml` to help users understand the different config options. ## Checklist - [x] My pull request has a...

Casting memmaps in ArrayProxies is slower than loading into memory first (optimization opportunity)

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It seems that reading uncompressed nifti volumes takes significantly longer when memory mapping is enabled. In this example, I load four large 4D nifti volumes from the ABCD dataset, with...

Iterative walk for sparsely traversing large nested directories

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I'm using `CloudPath.walk` to search a large nested directory, but I'm only descending into a very small subset of subdirectories (by removing elements from `dirnames`). However, it seems the current...