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Add Support for BitVector and BitMatrix Indexing #708

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merged 6 commits into from
Nov 13, 2024
Merged

Add Support for BitVector and BitMatrix Indexing #708

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ab44000
Add Support for `BitVector` and `BitMatrix` Indexing
RoyiAvital Oct 27, 2024
0d5b3aa
Add Support for `BitVector` and `BitMatrix` Indexing
RoyiAvital Oct 27, 2024
e84d666
Add Support for `BitVector` and `BitMatrix` Indexing
RoyiAvital Oct 27, 2024
3ade074
Update IndexAtom.jl
odow Oct 27, 2024
52fc1f9
Update test_atoms.jl
odow Oct 27, 2024
3af9f28
Update test_atoms.jl
odow Oct 27, 2024
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10 changes: 8 additions & 2 deletions src/atoms/IndexAtom.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -109,11 +109,17 @@ function Base.getindex(x::AbstractExpr, rows::AbstractVector{<:Real}, col::Real)
return getindex(x, rows, col:col)
end

function Base.getindex(x::AbstractExpr, I::AbstractMatrix{Bool})
function Base.getindex(
x::AbstractExpr,
I::Union{AbstractMatrix{Bool},<:BitMatrix},
)
return [xi for (xi, ii) in zip(x, I) if ii]
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Hmm. So these methods have been there forever:
92c93fd
but they don't really with the vibe of Convex because they return vector/matrices instead of a new atom.

end

function Base.getindex(x::AbstractExpr, I::AbstractVector{Bool})
function Base.getindex(
x::AbstractExpr,
I::Union{<:AbstractVector{Bool},<:BitVector},
)
return [xi for (xi, ii) in zip(x, I) if ii]
end

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9 changes: 9 additions & 0 deletions test/test_atoms.jl
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Expand Up @@ -520,6 +520,15 @@ function test_IndexAtom()
y = [true, false, true]
x = Variable(3)
@test string(x[y]) == string([x[1], x[3]])
target = """
variables: x1, x2, x3
minobjective: [1.0 * x1, 1.0 * x3]
"""
_test_atom(target) do context
x = Variable(3)
y = BitVector([true, false, true])
return x[y]
end
return
end

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