p300 classifier issue

[ikara]

I'm testing some .dat files I recorder earlier today, but it seems that the text editor in the data pane section of the classifier
is not displaying anything under the "Predicted" Column. I only have information under the columns "Flashes" and "%Correct".

I'm using one of the latest versions of BCI, downloaded via Tortoise in early June.
(it escapes my mind which version exactly)

[mellinger]

I guess you recorded your data using the StimulusPresentation module. Have you entered anything into the "Caption" row of your "Stimuli" matrix parameter? That's where P300Classifier takes the content of the "Predicted" column from.

Juergen

[ikara]

Actually I've used the p300 speller, not the StimulusPresentation

[mellinger]

Could you send me a data file for which the described problem occurs in P300Classifier, so I can try to reproduce it on my machine?
My email address is juergen.mellinger(at)uni-tuebingen.de.

Regards,
Juergen

[ikara]

I forgot to mention that I'm not using the standard speller, but one that contains images
(the Enter value of the image in the targetDefinitions matrix is a string, not a letter)

Is this why nothing would show under the "Predicted" column in the p300 classifier?

[mellinger]

Thanks for sending the data file. For the "Predicted" column, P300Classifier would use the "Display" column of the "TargetDefinitions" matrix, not the "Enter" column. I modified P300Classifier to use the "Enter" column when the "Display" entry of a target is empty, so your problem should be solved with the latest version of P300Classifier.

Thanks for reporting,
Juergen

[ikara]

I'm currently running the June build but the problem is still there :/
nothing will show up in the "Predicted" column of the classifier

[mellinger]

Hi,

the June build is from rev. 3359, while the change to the P300Classifier was in rev. 3361, so the June build does not contain this change.
Please update to the latest SVN version, and recompile P300Classifier. Alternatively, I can send you a current version of the P300Classifier executable.

Regards,
Juergen