I am trying to use sparseinv (sparseinv,sparseinv_install, parseinv_test) but it gave me an error.

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Mojgan Soltan 2018-3-7

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编辑： Mojgan Soltan 2018-3-7

I am trying to use sparseinv (sparseinv,sparseinv_install, parseinv_test) but it gave me an error. Any help would be much appreciated.

=======================

Undefined function or variable 'sparseinv_mex'.
Error in sparseinv (line 59)
[Z takflops] = sparseinv_mex (L, d, U', Zpattern) ;

===========================

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James Tursa 2018-3-7

Did you run sparsinv_install to compile the mex routine? The error message states that it cannot find the compiled mex routine.

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Answer 1

Mojgan Soltan 2018-3-7

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编辑：Walter Roberson 2018-3-7

在 MATLAB Online 中打开

Yes, after I run it gave me this error

=========================

>> sparseinv_install
Error: File: sparseinv_install.m Line: 1 Column: 50
Unexpected MATLAB operator.
 =============================

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Walter Roberson 2018-3-7

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Odd, when I look at your copy of sparseinv_install I can see that it does not have 50 characters on line 1 either.

What shows up for

which -all sparseinv_install

Mojgan Soltan 2018-3-7

编辑：Mojgan Soltan 2018-3-7

Yes, you are right it is odd. anyway I am going to delete them and get them again. is there any other code which I can replace with this (Sparse inversion) if the previous one not works in mine.

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Answer 2

Mojgan Soltan 2018-3-7

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Yes, that exactly I got it from.

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Answer 3

Mojgan Soltan 2018-3-7

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编辑：Walter Roberson 2018-3-7

在 MATLAB Online 中打开

I put all 3 of them in one directory

===========================================

>> dbtype sparseinv_install
   function sparseinv_install
   %SPARSEINV_INSTALL compiles and installs the sparseinv function.
   % Your current working directory must be the sparseinv directory for this
   % function to work.
   %
   % Example:
   %   sparseinv_install
   %
   % See also sparseinv, sparseinv_test
  
  % Copyright 2011, Timothy A. Davis, http://www.suitesparse.com
  
  is64 = ~isempty (strfind (computer, '64')) ;
  if (is64)
      fprintf ('Compiling sparseinv (64-bit)\n') ;
      mex -largeArrayDims sparseinv_mex.c sparseinv.c
  else
      fprintf ('Compiling sparseinv (32-bit)\n') ;
      mex sparseinv_mex.c sparseinv.c
  end
  addpath (pwd)