JuliaArrays / JuliaArrays/OffsetArrays.jl
Wrong results using argmin or argmax
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- Dominant language
- Julia
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Description
Using argmin or argmax along a dimension of an OffsetArray gives wrong results for some offsets
Examples:
using OffsetArrays
A = [1 2; 1 2]
for offset in 0:-1:-3
A_off = OffsetArray(A, offset, -1)
A_off[argmin(A_off, dims=2)] |> println
end
produces
[1; ; 1] # Correct
[2; ; 1] # Wrong
[1; ; 2] # Wrong
[1; ; 1] # Correct
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First steps
- Read the whole issue, then the project's contributing guide.
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- Open a pull request that references the issue number.
Research direction
Run the Julia reproduction in the issue with the listed offsets and compare each result with the expected output. Trace how argmin and argmax handle dimensions on OffsetArray values, then add or update coverage for the failing offsets. Done means the shown examples produce the correct results for every offset.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- julia
- Domain
- data
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 48/100