Reply-To: | | [log in to unmask][log in to unmask], 5 Jan 2008 22:11:58 +00007233_ISO-8859-1 Hi,
I've seen many postings on this spdiags error and experienced it first hand recently. It may result for a host of reasons, but one sure fire way to get this error is to use the intrinsic autocorrelation option (AR(1) + w) in your model in combination with a setting of the defaults.mask.thresh to 0.0 in the spm_defaults. If you're using the mask threshold of 0.0 to get around excluding voxels in your second-level group analysis, but still want to use the intrinsic autocorrelation in your first-level, I believe you can increase your mask threshold for the first-level, then convert the NaNs in your con files to zeros, then decrease the mask threshold to 0.0 and run your second-level analysis.
good luck, Mike Wolmetz Johns Hopkins University Department of Cognitive Science
On Mon, 6 Nov 2006 15:24:19 -0800, Jan Gläscher <[log in to unmask]> wrote:
>Hi Amit, > >I am just guessing here, but have you tried changing your BLAS version in >MATLAB? I recently came across a similar problem on my Linux box using >Matlab 7.1 (R14SP3), albeit not with the same error message, but also with >non-convergence in the ReML iterations. Perhaps there is the same problem >with Matlab 7.x under Windows. > >I change the BLAS version to libmkl_def.so and it work for my laptop with a >Pentium M processor. Maybe it'll work for you, too. Please consult this >message by Andreas Bruns and the link to a Mathworks README therein on how >to change the BLAS version: > >http://www.jiscmail.ac.uk/cgi-bin/webadmin?A2=ind0605&L=SPM&P=R11778 > >Good Luck, >Jan > >Amit Etkin wrote: >> Hi all- >> >> I am running into an odd problem. I recently switched from a mac running >> unix matlab 6.5 and spm2 to a PC running windows matlab 7.0.1 and spm2. When >> setting up and estimating a first level model that has never given me >> problems before I run into the following problem on the PC (this is the end >> of the estimation from the matlab command window). The error is below, but >> the fun's not over yet...more problems further down the email: >> >> Plane 69/69 , block 14/23 : ...read & mask data >> Plane 69/69 , block 15/23 : ...read & mask data >> Plane 69/69 , block 16/23 : ...read & mask data >> Plane 69/69 , block 17/23 : ...read & mask data >> Plane 69/69 , block 18/23 : ...read & mask data >> Plane 69/69 , block 19/23 : ...read & mask data >> Plane 69/69 , block 20/23 : ...read & mask data >> Plane 69/69 , block 21/23 : ...read & mask data >> Plane 69/69 , block 22/23 : ...read & mask data >> Plane 69/69 , block 23/23 : ...done >> Temporal non-sphericity (over voxels) : ...REML estimation >> ReML Block - 1 >> ReML Iteration : 1 ...NaN >> ReML Iteration : 2 ...NaN >> ReML Iteration : 3 ...NaN >> ReML Iteration : 4 ...NaN >> ReML Iteration : 5 ...NaN >> ReML Iteration : 6 ...NaN >> ReML Iteration : 7 ...NaN >> ReML Iteration : 8 ...NaN >> ReML Iteration : 9 ...NaN >> ReML Iteration : 10 ...NaN >> ReML Iteration : 11 ...NaN >> ReML Iteration : 12 ...NaN >> ReML Iteration : 13 ...NaN >> ReML Iteration : 14 ...NaN >> ReML Iteration : 15 ...NaN >> ReML Iteration : 16 ...NaN >> ReML Iteration : 17 ...NaN >> ReML Iteration : 18 ...NaN >> ReML Iteration : 19 ...NaN >> ReML Iteration : 20 ...NaN >> ReML Iteration : 21 ...NaN >> ReML Iteration : 22 ...NaN >> ReML Iteration : 23 ...NaN >> ReML Iteration : 24 ...NaN >ÐXТ |