[Eeglablist] study creation - session numbering conventions (STUDY.setind)

[Jakob Scherer]

Dear all,

We have the following experimental design:
2 conditions,
4 recording sessions

condition 1 only appears in recording sessions 1 & 2
condition 2 only appears in recording sessions 3 & 4

all subjects perform all sessions.

by creating a study we encounter the following warning:
"STUDY.setind contains NaNs. There must be a dataset for every
subject, condition, and group combination or some study functions will
fail."

apparently we have a dataset for every subject, condition and group
combination (however not for every subject, condition, group and
SESSION combination).

Now
1. is there a better way to define one's sessions/conditions?
2. what are the study functions that will fail?

Thanks for any help in advance

jakob