View source: R/interval-iterator.r
time_interval_gen | R Documentation |
The time interval generator creates an iterator, which
iterates over consecutive periods of length duration. This function is
a more general version of the hour_check_gen()
function, which iterates
over consecutive hours based on start and stop defined by the maximum and
minimum times defined in a check data set.
time_interval_gen( x, time, start, end, duration, start_loc = TRUE, end_loc = TRUE )
x |
the data frame of checkins. |
time |
the column denoting the timestamp. |
start |
the beginning of the interval. |
end |
the end of the interval. |
duration |
the period for each iteration. |
start_loc |
should the starting location be included? Default TRUE. |
end_loc |
should the starting location be included? Default TRUE. |
hour_checkin_gen
library(lubridate) library(dplyr) library(purrr) data(checkins) # Create a data set for the first hour of the checkins data. x <- checkins %>% filter(timestamp < min(timestamp) + hours(1)) # Create a generator for that hour with 15 minute durations. gen_15 <- partial(time_interval_gen, start = min(x$timestamp), end = max(x$timestamp), duration = minutes(15)) checkin_count <- function(it) { tibble(unique_ids = length(unique(it$id)), count = nrow(it)) } # Count the number of checkins for each interval. map_interval_dfr(x, gen_15, checkin_count, "timestamp")
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.