[Eeglablist] AMICA - Using PCA parameter

[Cortney Bradford]

We are interested in using using the PCA parameter when running AMICA
(amica11).

sample of the parameter settings:

data_dim 229
doPCA 1
pcakeep 150


AMICA seemed to run fine, but produced an ICA weights matrix that is
150x150 and sphere matrix that is 229x229. This becomes a problem when we
try to compute the activations using the following equation, due to the
matrices being different sizes.

*activations = weights*sphere*(input_data - row_means);*

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Are we doing something wrong in setting parameters or is this a bug?


Thank you,

J. Cortney Bradford

Post-doc

University of Michigan

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