Hello,<br><br>I am getting an "out of memory" error when running ICA decomposition (both with runica and binica) on some epoched data. This is confusing me because I didn't get this error when running ICA recently on data that was nearly identical and larger. To be specific: a few months ago I successfully ran ICA on some epoched Neuroscan data that I had imported into EEGLAB (each dataset consisted of around 120-160 sweeps, 3 seconds each with a sampling rate of 1000 Hz, and 36 channels, thus about 3000 frames per epoch, usually about 50-60 mB per dataset). Today I started running an identical analysis, on the same computer, using different Neuroscan epoch data (the Neuroscan epoched files were actually obtained from the same continuous (.cnt) data as the previous ones, just selected based on different event markers) and processing with the same protocol, and the new datasets are actually a bit smaller (fewer trials per dataset), but got the "out of memory" error. ICA still works on the old data, so it can't just be a problem with this computer. Can anyone think of anything other than the dataset size and number of channels that might affect memory required for ICA and cause this problem?<br>
<br>Thank you,<br>Stephen Politzer-Ahles<br clear="all"><br>-- <br>Stephen Politzer-Ahles<br>University of Kansas<br>Linguistics Department<br><a href="http://www.linguistics.ku.edu/">http://www.linguistics.ku.edu/</a><br>