scipp/scipp

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Multi-dimensional data arrays with labeled dimensions

Stars: 146
Forks: 23
Open beginner issues: 0
Indexed issues: 113
Avg merge: 2d 7h
Merged PRs (30d): 7

Dominant language: C++
License: BSD-3-Clause
Last GitHub push: Sep 11, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: good first issue

Beginner friendly Everything

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113 open issues indexed

Raise warnings when operations go wrong but don't fail completely Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

scipp/scipp#3971 · Opened Sep 9, 2026
Add saturating arithmetic Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

scipp/scipp#3967 · Opened Sep 8, 2026
Optimise: Do not copy in `values` Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

scipp/scipp#3962 · 2 comments · Opened Aug 20, 2026
bin, group, hist and nanhist do not implement ADR 0018 dim semantics for dense data Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

scipp/scipp#3960 · Opened Aug 19, 2026
hist depends on argument order when an edge coord is defined on a re-binned dim Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

scipp/scipp#3952 · Opened Aug 17, 2026
Make the pixi-build-cmake package build ccache-able in CI Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

scipp/scipp#3946 · Opened Aug 11, 2026
Serialization (pickle support) Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

scipp/scipp#3940 · 5 comments · Opened Aug 4, 2026
`hist` and `bin` produce zero-width bins for a constant coord Open

Difficulty 3/5 1-2 days Newbie friendliness 52/100

scipp/scipp#3935 · Opened Jul 28, 2026
Extend `sc.midpoints` to accept a DataArray Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 68/100

scipp/scipp#3932 · 4 comments · Opened Jul 21, 2026
Support for unsigned integers Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 52/100

scipp/scipp#3928 · 8 comments · Opened Jul 17, 2026
Weighted average using inverse variance Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

scipp/scipp#3913 · 5 comments · Opened Jun 23, 2026
Indexing sometimes treats booleans as indices Open

Difficulty 3/5 1-2 days Newbie friendliness 58/100

scipp/scipp#3909 · 10 comments · Opened Jun 18, 2026
Histogramming with edges containing NaN produces incorrect results Open

Difficulty 4/5 3-5 days Newbie friendliness 52/100

scipp/scipp#3908 · Opened Jun 18, 2026
Error when creating multi-dimensional array of objects Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

scipp/scipp#3902 · 4 comments · Opened Jun 10, 2026
`bins.mean()` with multi-dimensional data in bins gives wrong result. Open

Difficulty 3/5 1-2 days Newbie friendliness 65/100

scipp/scipp#3899 · 1 comment · Opened May 18, 2026
2D bin-edge coords cannot be assigned and displays cryptic error message Open

docs

Difficulty 3/5 1-2 days Newbie friendliness 68/100

scipp/scipp#3896 · 1 comment · Opened Apr 30, 2026
Lookup for spatial transformations Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

scipp/scipp#3893 · Opened Apr 28, 2026
Pixi can't find scipp for osx-arm64(or osx-64?) and tries to build it locally. Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

scipp/scipp#3887 · 8 comments · Opened Apr 15, 2026
Claude code review Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

scipp/scipp#3875 · Opened Apr 10, 2026
OOM when re-binning binned data array in same dimensions and using `.bin(..., dim=da.dims)` Open

Difficulty 3/5 1-2 days Newbie friendliness 62/100

scipp/scipp#3872 · Opened Apr 9, 2026
GroupDataArray with mask fails to calculate mean Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

scipp/scipp#3866 · Opened Mar 26, 2026
Inconsistent behaviour with `mean` on masked array with and without dimensions given. Open

scipp/scipp#3841 · 6 comments · 1 assignee · Opened Feb 11, 2026
`describe` / `summarize` method on `DataArray` Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

scipp/scipp#3830 · 1 reaction · Opened Jan 26, 2026
Raise in `.bins` for non-binned data Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

scipp/scipp#3791 · Opened Nov 26, 2025
Deprecate `.bins` for non-binned data Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

scipp/scipp#3790 · Opened Nov 26, 2025
Rebin can increase value of bins at the edges Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

scipp/scipp#3784 · 14 comments · Opened Nov 10, 2025
Add information to documentation on scipp.scipy.signal.find_peaks Open

enhancement

Difficulty 2/5 1-2 days Newbie friendliness 48/100

scipp/scipp#3764 · 1 comment · 1 reaction · Opened Sep 16, 2025
`DataGroup.bins.concat` is not implemented Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 35/100

scipp/scipp#3732 · 1 comment · Opened Jul 8, 2025
`groupby.concat` does not allow for input dim matching output dim Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 42/100

scipp/scipp#3720 · Opened Jun 2, 2025
Cumbersome type checking of units Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

scipp/scipp#3688 · 2 comments · Opened Apr 23, 2025
[Docs] Broadcast making shallow copy Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

scipp/scipp#3665 · 3 comments · Opened Mar 6, 2025
Exceptions with strided coords in `bin` Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

scipp/scipp#3660 · 1 comment · Opened Feb 17, 2025
Make DataArray constructor idempotent Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

scipp/scipp#3651 · 2 comments · Opened Feb 10, 2025
Improve formatting of count-rate related units Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

scipp/scipp#3620 · 3 comments · Opened Dec 11, 2024
Bin-edge-like mask should not be allowed. Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

scipp/scipp#3617 · Opened Dec 5, 2024
Concatenate arrays with different dtypes Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 45/100

scipp/scipp#3613 · Opened Nov 28, 2024
Segfault and negative years when string-formating datetimes with large years Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

scipp/scipp#3589 · 3 comments · Opened Nov 5, 2024
Histogramming datasets is not fully supported Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

scipp/scipp#3587 · 1 comment · Opened Nov 5, 2024
Include key in `DataGroup` type args? Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 30/100

scipp/scipp#3577 · 1 comment · Opened Oct 25, 2024
Make bins constituents immutable Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

scipp/scipp#3575 · Opened Oct 21, 2024
Consider implementing SPEC 1 — Lazy Loading of Submodules and Functions Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

scipp/scipp#3567 · 1 comment · Opened Oct 16, 2024
Binning and histogramming: Revisiting the "open on the right" interval question Open

discussion

Difficulty 5/5 Over a week Newbie friendliness 25/100

scipp/scipp#3566 · 3 comments · Opened Oct 16, 2024
Be "nicer" in terms of core usage? Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

scipp/scipp#3565 · Opened Oct 16, 2024
TBB and performance. Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

scipp/scipp#3551 · 13 comments · Opened Sep 25, 2024
Add scipp.nextafter Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

scipp/scipp#3546 · 2 comments · Opened Sep 18, 2024
Better handling of unsorted coords with label-based indexing? Open

discussion

Difficulty 5/5 Over a week Newbie friendliness 25/100

scipp/scipp#3527 · 3 comments · Opened Aug 28, 2024
Add sign function Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 45/100

scipp/scipp#3514 · Opened Aug 9, 2024
`numpy.minimum` equivalent Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 25/100

scipp/scipp#3502 · 1 comment · Opened Jul 24, 2024
Weird unit handling with multiplication and division Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

scipp/scipp#3500 · 16 comments · Opened Jul 18, 2024
Update user-guide/tutorial material Open

docs

Difficulty 3/5 1-2 days Newbie friendliness 45/100

scipp/scipp#3460 · 1 comment · Opened May 27, 2024

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