sorter, doing within group sorting with sorter looping through groups (even if there is only one group) using sort1.sort1(id1, y1, times1, events1, event.times1, group1,
ascending = TRUE, whichColumns = NULL, initFirst = FALSE)id for longCat.
y for longCat.
times for longCat.
events for longCat.
event.times for longCat.
group for sorter.
ascending for sorter.
whichColumns for sorter.
initFirst for sorter.