41319779928
93%

Ran 01 Nov 2026 03:15PM UTC

Jobs 1

Files 73

Run time 1min

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Committed 01 Nov 2026 03:09PM UTC coverage: 93.405% (-0.04%) from 93.44%

Build # 41319779928

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push

github

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web-flow

Commit Message

feat: add pick command for reduce (#429)

* feat: add pick command for reduce

Add a pick command to algorithm::reduce, which selects an arbitrary
subset of bins by index from an axis which is not ordered, like the
category axis. Unlike slice, the picked bins do not have to be
adjacent, and they may be given in any order, which reorders the bins
in the new axis. Counts in bins which are not picked are added to the
overflow bin, if it is present, consistent with how slice treats
unordered axes; otherwise they are discarded.

Axes opt into picking with a new special constructor which accepts the
original axis and a vector of bin indices to keep. The new trait
axis::traits::has_pick_constructor detects this constructor. Only
unordered axis (axis::traits::is_ordered is false) can become pickable.
axis::category implements it; ordered axes throw
invalid_argument, since picking a non-adjacent subset from them would
require changing the axis type, which reduce does not support yet.

---------

Co-authored-by: Hans Dembinski <hans.dembinski@gmail.com>

Coverage Stats

3031 of 3245 relevant lines covered (93.41%)

341602.98 hits per line

Coverage Regressions

Lines	Coverage	∆	File
4	97.56	-2.44%	boost/histogram/algorithm/reduce.hpp

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ID	Job ID	Ran	Files	Coverage
1	41319779928.1	01 Nov 2026 03:15PM UTC	73	93.41	GitHub Action Run

boostorg / histogram / 41319779928
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