Joe Dien

Rank of data is zero? Something peculiar is going on, that's for sure! I'll need you to submit a full bug report so that I can look into it. At the start of the tutorial pdf is a section on bug reports that tells you what I'll need to troubleshoot.

I can see how the warning message could be ambiguous. I'll clarify it for the next release.

It doesn't sound like you followed the installation instructions. Please take another look at them. Cheers! Joe On 6/27/24 17:07, PJ Brancaleone wrote: I am attempting to launch the EP toolkit for the 1st time. I have downloaded the most recent version (EP_Toolkit 2993) and unzipped the contents into where I have my other EEG applications like eeglab as recommended in the tutorial pdf. Then, I opened Matlab and clicked "add to path" -> "Current folder", then tried to run the ep command. When I do,...

or to put it another way, it is telling you that you are supposed to use the "Add with Subfolders" button. Your not using it is in fact the problem. Be sure to read the instructions regarding EEGlab and FieldTrip as well.

It doesn't sound like you followed the installation instructions. Please take another look at them. Cheers! Joe

If you mean the values of the factor pattern and factor structure matrices, you can obtain them using the Edit function.

In the case of the tutorial, this was handled by choosing the "autoPCA" option. It chooses the peak time point as the time window, which in this example was "192-196 ms." The "176-224 ms" you are quoting was for the windowing of the averaged data, not the PCA data. That would be chosen in the normal manner. In this case, the rationale was 25 ms on either side of 200 ms, for a 50ms long window, which is reasonable for an N2. If you're wondering why the numbers aren't multiples of five, it is because...

Ah, that makes more sense! It depends on what kind of reliability you want. The EP Toolkit is already set up to provide SME and Dependibility measures for ERP measures. Truth to tell, I don't think either of these provide what you have in mind. They are both pretty specialized in their nature. PCA is layering another level of complexity, so I don't know of anyone who uses reliability measures with them, except for between session reliability (at the subject level). The EP Toolkit automatically provides...