Open bsmity13 opened 2 years ago
Yes that's true, I did note this a few weeks ago. When fitting an iSSF with fit_issf()
this is not a problem because survival::clogit()
removes these strata. I did add a function remove_incomplete_strata()
to deal with such cases.
If direction_p
was NA
, then we would lose these steps and in cases we are only interested in sl_
it doesn't matter. What do you think?
Step 1 has no turn angle because there is no previous step (
ta_ = NA
). However, the random steps paired with step 1 do have a turn angle. Demonstration:Problem would arise for first step of any burst. Problem might be that
direction_p
should beNA
? Isn't that direction of the previous step?