1) the sequences I started to analyzed are short clips of 1 minute 30 seconds. For the moment, I chose lagsec = 5s and winsec = 10s, as turns in parent-infant interactions are known to happen in shorter windows because infants need greater contingency in interactions (I found study results in a paper by Ed Tronick to support this decision).
As the clips are quite short, I chose short incsec of 1s.
2) OK thanks!