## ----fig.width = 7, message=FALSE, warning=FALSE------------------------------
library(padr)
library(dplyr)
library(ggplot2)
veh_acc <- emergency |>
  filter(
    title == "Traffic: VEHICLE ACCIDENT -",
    lubridate::month(time_stamp) %in% 4:6
  )

veh_acc_line_plot <- function(padded_df,
                              units_to_last = NULL) {
  padded_df |>
    fill_by_value() |>
    thicken("day", "day") |>
    mutate(interval = format_interval(day_hour, "%H",
      sep = "-",
      units_to_last = units_to_last
    )) |>
    ggplot(aes(day, n)) +
    facet_wrap(~interval) +
    geom_line()
}

veh_acc |>
  thicken("3 hour", "day_hour") |>
  count(day_hour) |>
  pad() |>
  veh_acc_line_plot()

## -----------------------------------------------------------------------------
veh_acc_span <-
  span_around(veh_acc$time_stamp, interval = "hour", start_shift = "7 hour") |>
  subset_span(list(hour = c(7, 10, 16, 19)))

## -----------------------------------------------------------------------------
veh_acc_cust <- veh_acc |>
  thicken_cust(spanned = veh_acc_span, colname = "day_hour") |>
  count(day_hour) |>
  pad_cust(veh_acc_span)

## ----fig.width=7--------------------------------------------------------------
veh_acc_line_plot(veh_acc_cust, units_to_last = 12 * 3600)