sparsfun built-in function
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I have a code that uses the sparsfun function, but when I run the code I get the following error:
Error using sparsfun
Unknown command option.
I try to get help on that function, but it does not exist and when I use the which function I get:
which('sparsfun')
built-in (undocumented) % char method
Does anyone know about this function?
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Walter Roberson
2018-9-26
1 个投票
There is not even a single reference to sparsfun in the R2018b code in any .m in any of the toolboxes I have access to (many, but not all.)
It appears it was a routine that was used in the past to implement some of the sparse matrix operations.
There are a couple of commands documented for it in http://www.netlib.org/linalg/colamd/colamd_demo.m
The brief description from https://hwiegman.home.xs4all.nl/matlab4/sparsfun_m.htm also references nnz
You can find further hints at http://mseas.mit.edu/download/phaley/Matlab/Profile/Example/file50.html
It looks like matlab.internal.math.getOrSetSPPARMS() has replaced at least some of the uses.
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