Deprecate findn(x) in favor of find(!iszero, x), which now returns cartesian indices #25532
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This was referenced Jan 12, 2018
The BitArray method was missed when changing the AbstractArray method to return CartesianIndices for multidimensional arrays. Also fix the find(x) docstring which was inconsistent with the find(f, x) one.
JeffBezanson
approved these changes
Jan 14, 2018
base/deprecated.jl
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| @@ -2772,6 +2772,8 @@ end | |||
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| @deprecate findin(a, b) find(occursin(b), a) | |||
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| @deprecate findn(x::AbstractArray) (I = find(!iszero, x); (getindex.(I, 1), getindex.(I, 2))) | |||
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Is it worth trying to support non-2d arrays?
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Good catch. I've added a method for vectors and another for general arrays, and restricted this one to matrices.
…rtesian indices Also make find(::Function, ::SparseMatrixCSC) slightly more efficient by avoiding an intermediate allocation of index vectors.
DilumAluthge
added a commit
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Oct 14, 2023
Note: In #25532, `findn(x::AbstractArray)` was deprecated in favor of `findall(!iszero, x)`. However, the word `findn` will still appear in various places, such as `HISTORY.md`, so we should probably ignore it from `codespell`.
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As discussed at #24910. Part of #10593. Performance seems roughly equivalent (but I couldn't use
@benchmarksince BenchmarkTools currently doesn't load on master).The first commit fixes for things that have been missed by #24774.