This function summarizes the number of events and their total
duration in the dataset.
Usage
events_summary(data, step2time)
Arguments
- data
A dataframe with a keep column (representing which rows
are defined as events of collective motion) and a set column.
- step2time
The sampling frequency of the dataframe (how many seconds
are between each row of the data).
Value
A dataframe with 3 columns: set, ev_count (number of
events), and dur (duration of events in seconds).
Examples
data <- data.frame(
set = c(rep('1', 50), rep('2', 50)),
keep = c(rep(FALSE, 10), rep(TRUE, 70), rep(FALSE, 20))
)
time_per_row <- 1 # seconds
events_summary(data, time_per_row)
#> set ev_count dur
#> 1 1 1 40
#> 2 2 1 30
