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great, thanks!

Ariadna Albajara Sáenz
UR2NF - Neuropsychology and Functional Imaging Research Group
CRCN - Center for Research in Cognition and Neurosciences
       
UNIVERSITÉ LIBRE DE BRUXELLES, Avenue F. Roosevelt 50, CP 151, 1050 Brussels (Belgium). 
Office: DB10-237


El mié., 6 nov. 2019 a las 16:21, Matthew Webster (<[log in to unmask]>) escribió:
Dear Ariadna,
These look correct to me.

Kind regards
Matthew
--------------------------------
Dr Matthew Webster
FMRIB Centre 
John Radcliffe Hospital
University of Oxford

On 6 Nov 2019, at 15:01, Ariadna Albajara Sáenz <[log in to unmask]> wrote:

Dear Paul, 

Thank you very much for your answer. I used plain text now with spaces and the following commands "Text2Vest contrasts.txt design.con" and "Text2Vest design.txt design.mat"

My design. con file now looks like this:
/NumWaves 6
/NumPoints 6
/Matrix
1 -1 0 0 0 0
-1 1 0 0 0 0
0 1 -1 0 0 0 
0 -1 1 0 0 0
1 0 -1 0 0 0
-1 0 1 0 0 0

And my design.mat file now looks like this: (I have 54 participants).
/NumWaves 6
/NumPoints 54
/Matrix
1 0 0 96 1 1.32
1 0 0 99 0 1.13
1 0 0 97 0 0.77
1 0 0 101 1 2.12
0 1 0 126 1 1.42
1 0 0 120 0 0.98
1 0 0 152 1 2.17
1 0 0 119 0 1.42
1 0 0 134 1 1.05......etc

Does this look correct now? 

I can see the spaces are smaller between the numbers now. 

Thanks a lot in advance, 

Ariadna Albajara Sáenz
UR2NF - Neuropsychology and Functional Imaging Research Group
CRCN - Center for Research in Cognition and Neurosciences
       
UNIVERSITÉ LIBRE DE BRUXELLES, Avenue F. Roosevelt 50, CP 151, 1050 Brussels (Belgium). 
Office: DB10-237


El mié., 6 nov. 2019 a las 1:46, paul mccarthy (<[log in to unmask]>) escribió:
Hi Ariadna,

That does not look correct - could you make sure that your input files are plain text files, with spaces (not tabs) used to separate the values on each line. You should not need to worry about the PPHeights line.

Cheers,

Paul

On Nov 4 2019, at 10:06 am, Ariadna Albajara Saenz <[log in to unmask]> wrote:
Dear all,

I created the design.con file using the command: "Text2Vest contrasts.txt design.con" .
The contrasts.txt file looks as follows:
1 -1 0 0 0 0
-1 1 0 0 0 0
0 1 -1 0 0 0
0 -1 1 0 0 0
1 0 -1 0 0 0
-1 0 1 0 0 0

(I am comparing 2 by 2 three groups and I have 3 covariates)

But when running "Text2Vest contrasts.txt design.con", I get the following:

/NumWaves 36
/NumPoints 1
/Matrix
1 -1 0 0 0 0
-1 1 0 0 0 0
0 1 -1 0 0 0
0 -1 1 0 0 0
1 0 -1 0 0 0
-1 0 1 0 0 0

Which I believe is not correct.

1. Shouldn't it be:
/NumWaves 6 (columns)
/NumContrasts 6 (cause 6 contrasts)
/PPheights ???
/Matrix
1 -1 0 0 0 0
-1 1 0 0 0 0
0 1 -1 0 0 0
0 -1 1 0 0 0
1 0 -1 0 0 0
-1 0 1 0 0 0

2. What should go after PPheights?

3. When creating my design.mat file using Text2Vest, this looks like this:
/NumWaves 6
/NumPoints 54
/Matrix
1 0 0 96 1 1.32
1 0 0 99 0 1.13
1 0 0 97 0 0.77
1 0 0 101 1 2.12
0 1 0 126 1 1.42
1 0 0 120 0 0.98
1 0 0 152 1 2.17
1 0 0 119 0 1.42
1 0 0 134 1 1.05
etc.. (54 lines corresponding to participants).
Is this correct or should I also add a "PPheights " line? If yes, what should this contain?


Thank you in advance,

Ariadna


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