boostorg/histogram

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Fast multi-dimensional generalized histogram with convenient interface for C++14

Stars: 334
Forks: 76
Open beginner issues: 0
Indexed issues: 37

Dominant language: C++
License: BSL-1.0
Last GitHub push: Aug 3, 2026
Latest indexed: Sep 14, 2026
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Beginner labels: help wanted
PR merge metrics: No merged PRs in 30d

Beginner friendly Everything

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Fable review of Boost.Histogram Open

Difficulty 5/5 Over a week Newbie friendliness 28/100

boostorg/histogram#437 · Opened Jul 23, 2026
Mixed scalar/array `fill` zeroes the whole histogram when a non-inclusive axis drops the first entry Open

Difficulty 3/5 1-2 days Newbie friendliness 72/100

boostorg/histogram#426 · Opened Jun 1, 2026
Sparse histograms and maped-based storage Open

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

boostorg/histogram#389 · 13 comments · Opened Aug 23, 2023
Improve numerical accuracy of circular axis Open

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

boostorg/histogram#380 · 3 comments · Opened Dec 24, 2022
axes should provide strong exception guarantee for metadata Open

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

boostorg/histogram#379 · 10 comments · Opened Dec 24, 2022
Introducing `variable_t` and similar types for convenience Open

Difficulty 3/5 1-2 days Newbie friendliness 42/100

boostorg/histogram#378 · 9 comments · Opened Dec 24, 2022
boost::histogram::axis::variant, allow users to choose between sorted_array+std::lower_bound and eytzinger_layout+eytzinger_binary_search Open

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

boostorg/histogram#369 · 14 comments · Opened Dec 8, 2022
Extend fraction to weighted samples Open

easy enhancement help wanted

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

boostorg/histogram#367 · 1 comment · 2 reactions · Opened Sep 28, 2022
indexed(histogram) not usable with ranges Open

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

boostorg/histogram#355 · 3 comments · Opened Jul 15, 2022
Extend arithmetic operator support for accumulators Open

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

boostorg/histogram#352 · 4 reactions · Opened Feb 8, 2022
Confusing error on `make_histogram(axis::integer(0, 1), dense_storage())` Open

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

boostorg/histogram#350 · Opened Feb 4, 2022
Fuzzy testing of index and value of regular axis Open

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

boostorg/histogram#339 · Opened Sep 29, 2021
storage_adaptor<std::vector> missing efficient move assignment from std::vector Open

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

boostorg/histogram#338 · 4 comments · Opened Sep 28, 2021
Support `boost::rational` as value type for `axis::regular` Open

easy enhancement help wanted

Difficulty 3/5 1-2 days Newbie friendliness 42/100

boostorg/histogram#337 · 2 comments · 1 reaction · Opened Sep 27, 2021
How to bin integral vs floating point correctly (precision issue and general question) Open

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

boostorg/histogram#336 · 37 comments · Opened Sep 27, 2021
Feature request: strided array support for fill? Open

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

boostorg/histogram#331 · 2 comments · Opened Sep 15, 2021
Implemented a memory-compressed storage Open

easy enhancement help wanted

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

boostorg/histogram#318 · 1 comment · Opened Mar 24, 2021
Add guide for installing/including Boost Histogram standalone (possibly with CMake) Open

documentation help wanted

Difficulty 3/5 1-2 days Newbie friendliness 42/100

boostorg/histogram#288 · 5 comments · 2 reactions · Opened Aug 6, 2020
Replace axis::traits with uniform wrapper Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

boostorg/histogram#284 · 1 comment · Opened Jul 5, 2020
Replace optional_index with normal index again Open

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

boostorg/histogram#280 · Opened May 4, 2020
Implement over-allocation for histograms with growing axes Open

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

boostorg/histogram#278 · 1 comment · Opened Apr 30, 2020
Add pick command for reduce Open

help wanted

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

boostorg/histogram#275 · 4 comments · Opened Mar 19, 2020
Freedman-Diaconis rule or other bin-size heuristics Open

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

boostorg/histogram#265 · 4 comments · Opened Dec 27, 2019
accelerate serialization of storages that use accumulators Open

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

boostorg/histogram#255 · Opened Nov 27, 2019
add Function transform Open

easy enhancement help wanted

boostorg/histogram#253 · 2 comments · 1 assignee · Opened Nov 22, 2019
use arguments of storage to generate accumulator default value Open

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

boostorg/histogram#250 · 4 comments · Opened Nov 11, 2019
rewrite user guide and examples for c++17 Open

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

boostorg/histogram#249 · Opened Nov 5, 2019
Support multiple weights Open

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

boostorg/histogram#211 · 19 comments · Opened Sep 11, 2019
Add HealPix Open

enhancement help wanted

Difficulty 5/5 Over a week Newbie friendliness 20/100

boostorg/histogram#202 · 1 comment · Opened Jun 19, 2019
new axis: polygon Open

easy enhancement help wanted

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

boostorg/histogram#182 · Opened Apr 14, 2019
add streamers for ROOT, possibly in a separate repo Open

enhancement

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

boostorg/histogram#174 · 6 comments · Opened Mar 19, 2019
make unlimited_storage threadsafe Open

enhancement

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

boostorg/histogram#156 · Opened Feb 13, 2019
add storage based on memory mapped file Open

easy enhancement help wanted

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

boostorg/histogram#155 · Opened Feb 12, 2019
add interpolator functor Open

easy enhancement help wanted

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

boostorg/histogram#149 · 13 comments · 2 reactions · Opened Jan 21, 2019
add hexagonal binning Open

easy enhancement help wanted

Difficulty 5/5 Over a week Newbie friendliness 20/100

boostorg/histogram#137 · 1 comment · Opened Dec 13, 2018
Explain when to use Poisson and when to use multinomial errors Open

documentation

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

boostorg/histogram#114 · 18 comments · Opened Oct 1, 2018
New axis: piecewise_regular Open

easy enhancement help wanted

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

boostorg/histogram#47 · 6 comments · Opened Jun 19, 2018

boostorg/histogram

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