sourcestatistics

[Robert Oostenveld]

Hi Ho Fei

On 16-sep-2005, at 12:08, Hoi Fei Kwok wrote:
> We've been trying to use sourcestatistics.m but I found that first
> of all a
> few private functions are missing. These include:
> sourcestatistics_parametric.m
> sourcestatistics_randomization.m
> and sourcestatistics_randcluster.m

There are different methods available for statistical assesements of
differences between conditions, most of them are implemented for all
different data types, namely ERPs TFRs and source reconstructions.
These are implemented as submethods of the sourcestatistics,
freqstatistics and timelockstatistics functions. These functions will
call the appropritate subfunction, and these are missing. Some of the
subfunctions are still work in progress and are not part of the
release version of fieldtrip (because of scientific novelty).
However, there are also a few subfunctions that are supposed to be
part of the release version. I just checked and they are indeed not
part of the current zip file any more. I will make sure to include
them in the upcoming daily version. Furthermore, I will also send
them to you as attachement in a separate mail (probably tomorrow).

> Another problem occurred when we tried to set the cfg.approach to
> 'stat':
> ...
> Error in ==> fieldtrip-20050901\private\statistics_wrapper at 65
>     if isfield(varargin{1}, 'pos') && (length(varargin{i}.pos)~=length
> (varargin{1}.pos) || ~all(varargin{i}.pos==varargin{1}.pos))

That is indeed a bug. Please change the last part of the statement
from "all(varargin{i}.pos==varargin{1}.pos)" into "all(varargin{i}.pos
(:)==varargin{1}.pos(:))". I will fix it in the official version as
well.

best regards,
Robert

PS Sorry for my late reply, I was on the SPR conference.