Invalid MEX file /Question re: ft_clusterplot

[Andrea Ostendorf]

Dear Fieldtrip community,

When trying to use read_mri, I encountered the error
"??? Invalid MEX-file
'D:\FieldTrip\fieldtrip-20100219\external\spm2\spm_slice_vol.dll': The
specified procedure could not be found.

Proceeding along the lines suggested in the FAQ - changing to the SPM2
subdirectory and trying to compile the mex file again (using the MATLAB
compiler) - I get a long list of error messages, starting with a complaint
about a missing header file. I attach the complete error messages below.
As the error messages show, I use MATLAB R2007A and a new Fieldtrip version.
I have to admit to not having looked up this topic in the discussion list
because of the message that there is a problem with the security
certificate.
Does anyone have an idea? Any help would be very much appreciated.

Regarding ft_clusterplot: I have got the impression that during the check
for the existence of clusters, ft_clusterplot assumes the existence of both
positive and negative clusters, provided that there are any at all
(l.113-115). If there are just positive or negative clusters - as may happen
in the case of one-sided tests - this can lead to an error such as

??? Reference to non-existent field 'negclusters'.

Error in ==> ft_clusterplot at 119
  for iNeg = 1:length(stat.negclusters)


All the best
Andrea


-------------
>> cd D:\FieldTrip\fieldtrip-20100219\external\spm2
>> mex spm_slice_vol.c
lcc preprocessor error: spm_slice_vol.c:5 Could not find include file
"spm_mapping.h"
Error spm_slice_vol.c: 6  missing parameter type
Error spm_slice_vol.c: 6  syntax error; found `*' expecting `)'
Error spm_slice_vol.c: 6  skipping `*' `plhs' `[' `]' `,'
Error spm_slice_vol.c: 6  syntax error; found `int' expecting `{'
Error spm_slice_vol.c: 6  missing identifier
Error spm_slice_vol.c: 6  syntax error; found `const' expecting `;'
Error spm_slice_vol.c: 6  redeclaration of `mxArray' previously declared at
spm_slice_vol.c 6
Error spm_slice_vol.c: 6  syntax error; found `*' expecting `;'
Error spm_slice_vol.c: 6  undeclared identifier `prhs'
Error spm_slice_vol.c: 6  illegal expression
Error spm_slice_vol.c: 6  syntax error; found `)' expecting `]'
Error spm_slice_vol.c: 6  skipping `)'
Error spm_slice_vol.c: 7  type error: pointer expected
Error spm_slice_vol.c: 7  type error: pointer expected
Warning spm_slice_vol.c: 7  Statement has no effect
Error spm_slice_vol.c: 7  syntax error; found `{' expecting `;'
Error spm_slice_vol.c: 8  undeclared identifier `MAPTYPE'
Error spm_slice_vol.c: 8  undeclared identifier `map'
Error spm_slice_vol.c: 8  type error: pointer expected
Error spm_slice_vol.c: 9  illegal statement termination
Error spm_slice_vol.c: 9  too many errors

  C:\PROGRA~1\MATLAB\R2007A\BIN\MEX.PL: Error: Compile of 'spm_slice_vol.c'
failed.

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