Dear Jinhui,
currently F-contrasts are not supported because I had issues with some designs.
Best,
Christian
On Mon, 22 Oct 2018 12:48:26 +0800, Jinhui Wang <[log in to unmask]> wrote:
>Dear Christian and Inés,
>
>I have encountered a similar problem when comparing multiple groups using
>the TFCE toolbox.
>
>I have four independent groups of participants, and I select the One-way
>ANOVA design in the SPM 2nd level. However, I get the following
>error after I set the F contrast:
>
>"ERROR: F-contrast with multiple rows are not yet supported."
>
>My contrast is as follows:
>[1 -1 0 0
>0 1 -1 0
>0 0 1 -1]
>
>Will you please give me some comments on how to define the right F-contrast
>for my case?
>
>Best regards,
>
>jinhui
>
>
>
>Christian Gaser <[log in to unmask]> 于2018年5月7日周一 上午4:38写道:
>
>> Dear Inés,
>>
>> On 4 May 2018, at 22:02, Inés Del Cerro wrote:
>>
>> > Thank you Christian!
>> >
>> > This SPM.mat was an output from CONN toolbox where I introduced my
>> > three
>> > groups to perform an ANOVA, but it seems it does not work. After
>> > redoing it
>> > in an One-way ANOVA SPM 2nd level, TFCE work perfectly. I will try to
>> > find
>> > what was not good on CONN .mat.
>> >
>> >
>> > Just another question, I am also trying to run TFCE on a model with
>> > two
>> > groups and a interest covariate (separated in two columns, each one
>> > for
>> > values of each group) in order to study the interaction of this
>> > variable on
>> > connectivity. Values in this variable are significative different
>> > between
>> > groups. Could it be the reason why I get an error? And is it possible
>> > to do
>> > anything to perform TFCE on this model?
>>
>> This is a classical interaction design which should properly work in
>> TFCE. In case of doubt whether your interaction design is correct you
>> can check the CAT12 manual where such design and the respective
>> contrasts are described:
>> http://www.neuro.uni-jena.de/cat12/CAT12-Manual.pdf
>>
>> Best,
>>
>> Christian
>>
>> >
>> >
>> > Regards,
>> >
>> > Ines
>> >
>> >
>> > 2018-05-02 7:17 GMT-03:00 Christian Gaser
>> > <[log in to unmask]>:
>> >
>> >> Dear Ines,
>> >>
>> >> I have checked your SPM.mat and your design deviates from that what
>> >> is
>> >> usually expected. If you are interested in comparing groups by each
>> >> other
>> >> your have to define the groups as factor in an Anova and not using a
>> >> regression with "0" and "1" codings. Please check the CAT12 manual
>> >> for
>> >> getting help about building your design (page 15 f.):
>> >> http://www.neuro.uni-jena.de/cat12/CAT12-Manual.pdf
>> >>
>> >> Best,
>> >>
>> >> Christian
>> >>
>> >> On Sat, 28 Apr 2018 00:36:19 +0100, Ines Del Cerro
>> >> <[log in to unmask]>
>> >> wrote:
>> >>
>> >>> Dear experts,
>> >>>
>> >>> I am trying to estimate TFCE with the last version and I get the
>> >> following error:
>> >>>
>> >>> Failed 'Estimate TFCE'
>> >>> Subscript indices must either be real positive integers or logicals.
>> >>> In file "C:\spm12\toolbox\TFCE\cg_tfce_estimate.m" (v156), function
>> >> "cg_tfce_estimate" at line 697.
>> >>>
>> >>> I try to run it for simple contrasts (such as 1 -1 0), and I did
>> >>> some
>> >> tests for the model with and without covariates without any success.
>> >> I did
>> >> not move any file from folders or similar.
>> >>>
>> >>> Does anybody have any idea how to fix it?
>> >>>
>> >>> Thank you in advance,
>> >>>
>> >>> Ines
>> >>
>> >>
>> >>
>> >
>> >
>> > --
>> > Inés Del Cerro, PhD Student
>> >
>> >
>> > Bellvitge Biomedical Research Institute-IDIBELL
>> > Psychiatry Service, Bellvitge University Hospital
>> > Barcelona, Spain
>> >
>> > * e-mail: *[log in to unmask] ; [log in to unmask]
>> > Tel.: +34 93 260 75 00 ext. 2864
>>
>
>
>--
>Jinhui WANG, Ph.D., Investigator
>
>Center for Cognition and Brain Disorders (CCBD)
>Hangzhou Normal University
>
>Add: Room #302, Building 19, No.58 Haishu Rd.
>Hangzhou, 311121, P.R. China
>
>E-mail: [log in to unmask]
> [log in to unmask] <[log in to unmask]>
>
>Google Scholar Citations:
>http://scholar.google.com/citations?hl=en&user=4_djMV0AAAAJ
>Research Gate
>https://www.researchgate.net/profile/Jinhui_Wang2/
>
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