[Eeglablist] Question regarding fastICA

[Ewa Beldzik]

Dear all,

When applying fastICA algorithm in Matlab to a data consisting of 4
signals, I have noticed that only when I choose 4 IC to be estimated, the
formula A*icasig =X actually works. After choosing 2 or 3 IC the data (X)
is reconstructed imprecisely.
Could you explain why? I wish to understand the methods fully.

Thank you in advance,
Ewa
PhD student from Cracow
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