sparsfun built-in function

Question

4lrdyD 2018-9-26

评论： 4lrdyD 2018-9-27

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?

Answer 1

Walter Roberson 2018-9-26

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

It looks like matlab.internal.math.getOrSetSPPARMS() has replaced at least some of the uses.

4lrdyD 2018-9-27

thanks a lot!!