| sepIdGaps {trip} | R Documentation |
A new set of ID levels can be created by separating those given based on a minimum gap in another set of data. This is useful for separating instruments identified only by their ID into separate events in time.
sepIdGaps(id, gapdata, minGap = 3600 * 24 * 7)
id |
existing ID levels |
gapdata |
data matching id with gaps to use as separators |
minGap |
the minimum "gap" to use in gapdata to create a new ID level |
The assumption is that a week is a long time for a tag not to record anything.
A new set of ID levels, named following the pattern that "ID" split into 3 would provided "ID", "ID_2" and "ID_3".
It is assumed that each vector provides is sorted by
gapdata within id. No checking is done, and so it is suggested that
this only be used on ID columns within existing, validated trip objects
Michael D. Sumner
id <- gl(2, 8) gd <- Sys.time() + 1:16 gd[c(4:6, 12:16)] <- gd[c(4:6, 12:16)] + 10000 sepIdGaps(id, gd, 1000)