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bug in QRsparse #29787

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chriscoey opened this issue Oct 24, 2018 · 0 comments
Closed

bug in QRsparse #29787

chriscoey opened this issue Oct 24, 2018 · 0 comments
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bug Indicates an unexpected problem or unintended behavior linear algebra Linear algebra sparse Sparse arrays stdlib Julia's standard library

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@chriscoey
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using SparseArrays, LinearAlgebra
A = spzeros(7,1)
F = qr(A)
rank(F) # 33

it says the rank is 33, but it should be 0

(aside: it would be really nice to have a unified QR interface for sparse and dense. I can't call rank for a dense QR.)

@andreasnoack andreasnoack added bug Indicates an unexpected problem or unintended behavior linear algebra Linear algebra sparse Sparse arrays stdlib Julia's standard library labels Nov 4, 2018
KristofferC pushed a commit that referenced this issue Nov 12, 2018
KristofferC pushed a commit that referenced this issue Dec 12, 2018
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Labels
bug Indicates an unexpected problem or unintended behavior linear algebra Linear algebra sparse Sparse arrays stdlib Julia's standard library
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