Remove duplicated consecutive states from data.
If for an individual there is two or more consecutive states that are identical, only the first is kept.
Only time when the state changes are kept.
remove_duplicated_states(data, keep.last = TRUE)
Arguments
- data
data.frame containing id
, id of the trajectory, time
, time at which a change occurs
and state
, associated state.
- keep.last
if TRUE, keep the last state for every individual even if it is a duplicated state.
Value
data
without duplicated consecutive states
Author
Quentin Grimonprez
Examples
data <- data.frame(
id = rep(1:3, c(10, 3, 8)), time = c(1:10, 1:3, 1:8),
state = c(rep(1:5, each = 2), 1:3, rep(1:3, c(1, 6, 1)))
)
out <- remove_duplicated_states(data)