[Erppcatoolkit-support] different average conditions per participant

[Maria S. P. <m.s...@gm...>]

Dear All,

I have just downloaded the toolkit to perform PCA on my averaged data. I am
struggling to understand how I can keep my experimental conditions
separeted when I read my data on the toolkit.

I have two experimental conditions for each subject. I glued all of the
averages together in the edit window (append function); I gave the same
subject name to the two experimental conditions averages and assigned them
a weight of :

weight   name
1            sub001   (This would be: AVg condtion1 subject1)
1            sub001   (This would be: AVg condtion2 subject1)
1            sub002    (This would be: AVg condtion1 subject2)
1            sub002   (This would be: AVg condtion2 subject2)
1            sub003   (This would be: AVg condtion1 subject3)
1            sub003   (This would be: AVg condtion2 subject3)



When I run the PCA, the toolkit treats each raw as a single participant (in
the command window it would count up to six in this case)
So I was wondering if this was the right way to feed the program with
different averages per conditions.

As I understood PCA I should need to keep conditions separated but please
tell me if I am wrong.

Any help would be very much appreciated.

Best wishes,

Serena



-- 
Maria Serena Panasiti, Ph.D

Cognitive Social and Affective Neuroscience Lab
Department of Psychology.
University of Rome "La Sapienza".
Via dei Marsi 78 - 00185 - Roma.
Phone: (+39) 06-49917635. Fax: (+39) 06-49917635

School of Psychology & Clinical Language Sciences
University of Reading
Reading, United Kingdom