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[Octave-bug-tracker] [bug #53198] nnz could be improved for diagonal mat
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From: |
Dan Sebald |
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Subject: |
[Octave-bug-tracker] [bug #53198] nnz could be improved for diagonal matrices |
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Date: |
Mon, 18 Jun 2018 14:45:51 -0400 (EDT) |
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User-agent: |
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:55.0) Gecko/20100101 Firefox/55.0 |
Follow-up Comment #8, bug #53198 (project octave):
Oh, and I forgot to mention one of the first things that caught my eye, and
why I started the examples with a sparse matrix. In the issorted()
documentation it states
This function does not support sparse matrices.
Again, sorting a sparse matrix is simply a case of changing the
sparse-matrix's indeces appropriately. In fact, it's already implemented:
octave:33> sort(X)
ans =
Compressed Column Sparse (rows = 3, cols = 4, nnz = 2 [17%])
(3, 1) -> 4
(3, 2) -> 5
So why can't issorted() work for sparse matrices?
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