a.g.leontiev
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 a.g.leontiev
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I have another question. Should I want to calculate other measures, like acceleration and velocity, will setting trajectories to zero be sufficient? In other words, if i want to calculate say velocity after certain time period, do I only need to ch…

thank you!

This is how I did it: average_measures < mt_aggregate_per_subject( mt_data, use="measures", use_variables=c("total_dist_600"), subject_id="subjID" )

Thank you so much! It really does help! I have one additional question: how do I summarize these measures by subjID (and possibly, by some other factors)? thank you!